I will spare myself the time of deconstructing that simplistic fallacy and simply note that you are de facto conceding the point that these wars don’t help us - Americans - at all.
As to being simplistic, reality is fairly simple. Kurds and Shiites, who could have returned to the good old days under Saddam by electing Sunni Arabs to power, chose otherwise. They certainly did very little against US troops the whole time our guys were there.
“They helped us by killing off Muslims with the guts to do jihad rather than merely preach it. And the ensuing intra-Muslim slaughter is giving Muslims second thoughts about Islam, which isn’t such a bad thing.”
Well if the goal is to hang our troops out there as terrorist fly paper from now until forever... then yeah I guess it is going great. That is only sort of sarcasm. I mean really... if that IS the goal then the war is going just fine.