Outside of the battlefield they will not. That is a mistake you are making. You want proof. When they come home they dont kill when someone tells them to. Its much more complex than that.
Some do not fit the bill of “reluctant warrior”, there is no denying that. But many do. They have been fooled into believing they are protecting their friends and family from a hostile force. So yes they are reluctant warriors. They were not raised to be killers and were not killers at home.
Maybe, maybe not. That is a broad brush you are using. You claim that they have no problems killing “the enemy” who according to you is anyone they are told is the enemy. If this is the case why are these butchers coming home with major mental and emotional problems. Obviously taking the life of humans (designated enemy or not) is not the equivalent of a bug. Your characterization is just false.
Do they really? Primarially? How do you know this? There are tens of thousand of reservist and national guard serving tours in afganistan and iraq who make a ton of money in the private world. So they have had to give up a great deal of benefits and money to serve. Yet they do. So if its not primarially for the apparently excellent pay and benefits, they why do they?
I do not claim that all american soldiers are just honest, good guys, trying to make the world a better place. I do claim that putting all soldier in the same bucket is based on lack of information and an understandable bias.