argatoga
Can't Start His Wank
It's this kind of thinking that is largely responsible for terrorism in the first place, if the people in the country accept Sharia law then it's really their business as long as they are not trying to impose it on other countries (like US does with "democracy"). Meddling in other countries' affairs is a quick way to end up with a massive clusterfuck. The only reason Taliban even exists still is because US fought a proxy war in Afghanistan and supplied them with weapons. Even the rise of IS can be easily traced to the war in Iraq since most of the leadership is former high ranking Iraqi officials. There are no examples in history where a foreign invasion into a sovereign country did anything but make things worse.
You're veering into Chomsky conspiracy theory. I agree the US has made situations worse and enabled criminals and butchers, but you can't treat the populace in these regions as children. They have their own agency.
As for situations where a foreign invasion into a sovereign country did makes things better, I can think of Germany, Japan, and Iraqi Kurdistan off the top of my head.