There are interviews with special operations soldiers saying that they would receive a kill list, they would work their way down the list, then the next month the new kill list would be much longer.
If you raid a house, kill the father/brother/uncle and maybe have some collateral damage, it doesn't matter whether or not that person was against America, you've converted several people in that family and community against America because we just became the terrorists.
America not being a popular target for terrorism is a much more difficult problem to solve. People are crazy, ignorance combined with religion leads to misguided people, even jealousy is a factor. Foreign nations will do almost anything to increase the wealth of their country, that would be very difficult to prevent.
Might be worth working at not doing things that make one a prime target instead. This would be a better investment from what I can see. Just look at the growth of ISIS in Iraq. Our governments seem to create more enemies with every attempt to quash them.