Considering that the sentiment is aimed at ISIS and not the local Sunnis, probably not many.
ISIS consists of local Sunnis. A scorched-earth campaign would sour many of them to the United States.
That's really awful. What disgusting cowardly monsters. We need to kill or help the Kurds kill every single one of them.
That line of thought certainly won't win ISIS any new recruits, right?
If America never sent a single person to any country ever the world would literally be utopia. Every single bad thing that happens on this gay earth can be backtraced to Amurican Imperialism.
Well, the last positive intervention was against the Nazis. Maybe you could count Afghanistan had it just been an air operation against Al-Qaeda training camps.