That’s not quite true. There are still illegal reasons for firing (discrimination, retaliation for whistleblowing, etc) though fighting back can be difficult and costly. But if you’re okay with the current state of affairs (I was with my own previous incident - the company was awful) it can make sense to just move on.

That's true. I should've mentioned that they tried to play down the effect of the video and made up some vague performance reasons. But yea I'm fine with it and had been planning to leave for a while, so no hard feelings. The best retaliation would be me achieving success in my new endeavors.