This is the common description of communities no matter the president in turn (a total sense of indifference and a sheer amount of ignorance)... Slavery used to be legal, and people who helped slaves were considered criminals too because they were violating the law.
If something is written in the constitution, it doesn't mean it's morally right.
And it is so easy to make people contradict themselves. Their blindness is so outrageous that when someone throws some facts on their faces, the OH OH moment shows up "What have I been doing?" they think.
When military people understand that the oath they take is for protecting the rights and lives of innocent people, that would be the moment when all governments in the world fear the consequences of their actions.