Do you apply this principle consistently or only when and how it suits you? Yes, absolutely it is a trick question.

Are you aware of any case where the US went to war under pretenses known to be false from the start, or interfered in the internal affairs of another country to cause loss of life, or allied with countries that committed terrorism against the US and others, etc. and none of the initiators suffered any consequences?

It's bad enough that morals can be twisted enough to justify just about anything and in any condition, and education these days lets anyone think they can justify anything simply by the fact that they said it. Don't add hypocrisy to that too.