Shiites like Assad killed our marines in Beirut.
Marines are soldiers. Getting killed is an occupational hazard, especially when you're posted in a locale where the inhabitants don't want you there. Should we have destroyed Iran's air force in retaliation? Reagan had that option but chose not to exercise it. Sunnis came to our land and instead of attacking a military base, killed this baby girl and her parents along with 3000 other people, 90% of them civilians.