Ideolocide

If Stephen Colbert can have 'truthiness', then I can have 'ideolocide'.
I invent the word 'ideolocide' at the risk of looking like a fool, because it seems to me there probably already is a word for what I am thinking of, but I just don't know what that word is.
'Ideolocide' shall be defined as the attempted destruction of an ideology--this is not to be confused with 'genocide', which could be broadly construed as the attempted destruction of a political group (though I think most of us traditionally think of it as a race or culture being destroyed).
So ideolocide is the attempted elimination of an idea, or group of ideas.
Ideolocide is seemingly what the 'war on terror' is attempting to do: Destroy the idea of religious fanatacism. I want to talk about this from two directions: 1. Is ideolocide possible? 2. Is ideolocide ethical?

1. Is ideolocide possible?
I'm not really sure if the possibility of ideolocide is a necessary precursor to an attempted ideolocide; after all, the Bush administration has suggested that the war on terror is unending. This is sort of strange--the idea of a war being, in principle, 'unwinnable'. (The logical positivists certainly would have argued it to be meaningless.) Nevertheless, it being strange certainly doesn't disqualify it.
So what would have to happen for an ideolocide to be a success? Well, for starters, we would have to eliminate the idea/ideology in its believer's heads. This could seemingly be done by killing and/or brainwashing all believers.
This isn't all, of course. To complete an ideolocide, we would also need to brainwash (or, rationally convince) anyone who would 'contemplate' believing the idea/ideology in the future. This would probably involve some sort of education program, which would have to be reinstated worldwide. Even if we were only attempting a national ideolocide, our education program would need to be worldwide--ideas can cross borders, regardless of how isolationist a nation may be.
This education program might not be quite as tough as it seems. All we would need to do is create a culture which would render the idea/ideology unthinkable. Certainly there have been cultures historically who have rendered certain ideologies unthinkable: In the middle ages, for example, atheism was considered so unthinkable that people actually considered atheism an impossible belief--they thought God's existence was so self-evident that anyone who denied it was delusional.
So, something like this is what we would need to put into place to make an ideolocide successful.
Also, let's not forget: we would need to eliminate any literature which spoke of the idea/ideology. We couldn't just eliminate literature which promoted or condoned the idea/ideology, but anything which could spark the idea in a critical reader's mind. Now I'm not sure this would be possible, at least for any ideas we find threatening. To eliminate religious fanatacism, we would have to eliminate all religious books! This seems impossible. We could burn millions of books, but chances are quite high that copies would remain, in hiding. Soviet Russia tried to do this, with minimal success--and that was just nationwide. A worldwide attempt at this would probably be impossible.
So it seems rather clear that what would have to be done for a successful ideolocide is impossible. For it is not just a matter of killing or brainwashing a group of people, but of killing or brainwashing anyone who would even critically examine an idea/ideology without rejecting it out of hand.

Nevertheless, it still may be argued that an attempted or partial ideolocide would be helpful, even if it could never be completed. So let us address our second question:
2. Is ideolocide ethical?
Ok, so I think it would be trivial to say ideolocide is unethical with respect to certain ideas/ideologies. That it not the question I have in mind. What I want to ask is, is ideolocide ever ethical? or, Is ideolocide unethical in principle?
I think the best way to ask this question is to look at a morally reprehensible idea, such as "The Aryan Race is the master race", and ask whether an attempted ideolocide of that is ethical.
I think it is clear to a Kantian that ideolocide is unethical, as it involves categorically unethical acts: Killing, Brainwashing (Taking away the free will of another rational being), destruction of knowledge (Because, after all, even if the idea/ideology itself was false, some of the things which don't promote the idea/ideology itself but still mention it would certainly contain valuable information.)
But hey, who is a Kantian anymore anyway?
What about to a utilitarian? Well, this seems like the best route to take for an ideolocide advocate. It basically reduces the question to this: Are there any circumstances in which the attempted destruction of an idea/ideology would create more pleasure/less pain than failing to destroy an idea/ideology would?
And it seems, at least to me, that there could be certain extreme situations in which the answer to this question would be 'Yes', and thus, ideolocide would not be wrong in principle.
But don't worry, hippies, this doesn't open up the floodgates. Because think about what would have to be taken into account when we do our utilitarian calculation:
1. Severely reduced freedom, worldwide, of education, religion, speech, press.
2. Imprisonment and 'reeducation' program to anyone who attempted to exercise freedoms. If this failed (or if there was risk their idea/ideology could be spread to others) it seems like death would be the only other solution.
3. Not only would you have to punish anyone who exercised freedoms of speech, but you would have to somehow destroy the idea from their heads. This couldn't even be a matter of convincing them not to hold the ideology--it would be a matter of eliminating the ideology completely and all traces of it.
4. A limitation of freedom would be a) fascism, and b) The suppression involved in the attempted ideolocide would drive people to develop negative ideologies toward the state, risking rebellion.
5. The risk of a slippery slope; resulting in the attempted ideolocide of any ideas/ideologies that disagreed with official state policy.

As we can see, this world resembles something close to Orwell's 1984. It is hard to imagine a situation which would necessitate ideolocide, short of threat of the genocide of the entire human race.
And, in terrorism, I fail to see this. Terrorists do want to kill people, but not everyone. And the amount of people we would have to kill to commit ideolocide of Islamic fascism would probably be around the same amount of people they would have to kill of ours to succeed. Not to mention, the fascism we would have to attempt would probably be just as bad as Islamic fascism, short of it being based in religion. So it doesn't seem like ideolocide in this situation fits the bill of 'ethical', even to a utilitarian. Stooping to the level of an enemy, or even to a level above that of an enemy that is still morally reprehensible, is not worth fighting an indestructible ideology. It seems the best thing to do is to attempt to protect ourselves, and attempt to show that our ideology is better than the Islamic fundamentalists'. Patience and self-protection. And yeah, we can protect those that are with us on this fight as well. But protection at the cost of giving up our ethics would be wrong, as is, in my opinion, the attempted ideolocide of religious fundamentalism.
Conservatives think that the free market should guide us as far as products, supply and demand, and economics goes. So why do they want the government to limit the marketplace of ideas? Certainly the threatening and unethical ones will be weeded out, right?