Leftists know that conservatives love to argue about semantics and principles so they keep them distracted with that by changing both to keep the conservatives chasing a moving target, never allowing them to get to the heart of the issue.

Vaush is a master of this. He'll come out with a set of closely held definitions and principles that his views are supposedly based on, and if that line of argumentation isn't working, he'll just pull out an entirely new set even if they are completely contradictory to what he was originally arguing.

Stop arguing with leftists about definitions. They will change them on you. Stop arguing with them about principles because they have none.