Oh, I'm not saying that it was purely undertaken because of the Republican Party. What I'm saying is that the American state began to whip up the war drums nearly the day after the attacks occurred.
I was middle school at the time, and, so, I wasn't quite apt for detailed political analysis then, but there seemed to be a coordinated campaign of added security measures and pro-war propaganda even before we decided to invade Afghanistan.
Sure, you would see kind of a vengeful response from some people here and there. I recall seeing a bumper sticker suggesting that we should drop nuclear bombs in region. Without the military publicity campaign, coordinated security efforts, often to the point of outright absurdity, and, perhaps, most particularly, media sensationalism, I do think that the response to the attacks would have moreso been one of mourning.
In catechism, I remember watching a memorial video for the people who died in the attacks. Though I'm not really one to laud the Catholic Church, among the audience, there was no real anger or jingoism. It was all very solemn. That seems to have been a much more appropriate response from a populace who has born witness to one of the most successful terrorist attacks in all of human history, at least, in so far that we are to exclusive consider terrorism as having been carried out by some sort of insurgency as we do today.
There was also a notable push to recruit young people to join the military at the time, and, so, among the martial administration, I think that there was a generalized assumption that we were going to war before the war even began, rather in spite of that their own strategists must have known that such heavy-handed tactics tend to be fairly ineffective in countering terrorism.
In a way, I think that the Cold War American myth, that of the United States being a bastion of freedom and democracy in the world, one that I would have no qualms with it living up to were it, at all, to actually do so, engaged in a battle for the hearts and minds of people all over the Earth, a somewhat messianic and expansionist enterprise in its own right, against the evils of totalitarianism, which we could lay some claim to on account of having won the Second World War, though, as, I think, we all know, effectively turned out to be any and/or everything that could be characterized as "communism", which, granted, did have some material basis within the form of control that any number of nations effectuated, proceeding from the establishment of the Soviet Union, transferred to spectral haunt of Islamic extremism, perhaps, in part, due to a cult pathology engendered by what American security advisors could no longer avoid coming to the realization of, namely that we had significantly contributed to the conditions for which it could occur.
In a way, the attacks on the Eleventh of September in 2001 were a godsend for the martial administration of the United States, as they provided both the legal and extra-juridical rationalizations and justifications for the mass expansion of fourth-generation warfare strategies and technologies, aside from the most obvious vindication in the form of another enemy to fight.
I don't think that anyone wanted for the towers to come down. The most abject and selfish reactionaries within the Central Intelligence Agency wouldn't have willed for such a tragedy to occur in the interest of accumulating power in the wake of a projected "war on terror". I do think that we were lying in wait for an attack, however. They knew that a bomb would go off somewhere eventually and were speculating upon which one could be utilized in crafting yet another noble lie and extenuating a form of conflict that exists everywhere, all at once, and is directed against a nameless enemy.