Funny you should mention political satire. Is it protected speech to show a to-be mob a deepfake video of a political rival in a secret meeting saying that they enjoy causing suffering of the weak?
This is just one example. People are very easily manipulated and these days tribes are operating in a post-fact era manner. The prospect of readily available deepfakes makes this problem much worse.
Honestly, I don't think the problem can get worse. Or at least, it won't get worse because of more information. The capacity of the human mind for rationalization is already essentially infinite, people are manipulated because they want to be manipulated.
It's pretty much to be expected, the world is really quite complicated and without a drive for consensus independent thought would lead you astray a hundred times before leading you to water.
This is just one example. People are very easily manipulated and these days tribes are operating in a post-fact era manner. The prospect of readily available deepfakes makes this problem much worse.