The President has done nothing illegal so there is nothing to protest.
Incorrect. He has explicitly signed the latest TK law despite the fact that it contains clearly unconstitutional articles.
Furthermore, he's a liar.
Oh, and of course, we mustn't forget that Duda is ignoring published decisions by the TK. He is duty bound to follow their decisions, and he has failed to do so. For all your American claims of him having a "pocket veto", no such concept exists in Polish law.
Still, Duda will no doubt enjoy himself in prison as being the first European ex-President to go to prison for a very long time.