> There are only two things we should fight for. One is the defense of our homes and the other is the Bill of Rights.

The problem is that you can justify almost any conflict as ultimately meeting these criteria. If you let someone else become too powerful isn't that a de facto threat to your home? If you don't defend rights abroad, don't you threaten the extinction of rights at home?

That's why we do rely on the morality of our leaders. Which seems to be ropey at best.