That is why we have elections, to sort these things out, and Trump is the man elected for the job.
He run on exactly opposite of what he is doing - explicit election promise to not get involved in more Middle East wars.
They shot some missles, it's not a War. If bombing now means we are at war then we was at war in Libya when Obama had planes bomb them as well.
Obama and Hillary absolutely should not have been shooting missiles at Qadafi either. Just because the target is too weak to retaliate doesn't mean that shooting them isn't an act of war.
The logic that says launching military strikes at neutral countries isn't an act of war is on about the same level as the logic that the Founders intended "Arms" to be "muskets" when they penned the 2nd Amendment.
When you weaken one part of the Constitution, you weaken the whole thing.