Interview those paid killers and find out why they do it. If my personal experience as a warrior doesn’t convince you maybe hearing it directly from them will.
If you're suggesting fewer people would sign up to be paid killers if we didn't lavish them with hero worship, then I'm okay with that. In fact, I'll go so far as to state that as an intended consequence. The other, larger component, is that the false dichotomy between hero worship and villainization robs the general public of the ability to rationally consider what our military is doing.
