Ok as someone who voted Trump...I agree we can't just "bomb the hell out of ISIS" so to speak. If it were that simple, it would have been done already. And Trump is only using that rhetoric to grab the GOP nomination, before moving back towards the middle if he gets the nomination, as is typical for any candidate on both sides. That said, we need to do something about this group.
Today, America as a whole is more concerned with being liked than respected, and to be honest I hate that. Other nations used to hate us because we were superior to them in so many areas, but they'd have to respect us. Now we look at what goes on, and it's clear that ISIS and other terrorist organizations see us as weak. They know that so many of us are afraid to go and attack them, and we comply so that we don't look like the bad guys. I'd rather be hated and greatly respected than liked and not respected.