I'm unsure if this is accurate. While Trump no doubt bitched about people who made fun of him... and anyone who didn't agree with him in general... but I don't remember him getting litigious with SNL. Certainly, Hamilton would've been a performance he would've liked to curtail but I don't remember him filing anything against them either. I could be wrong though.
More specifically, why are we still dumping on Trump when there are so many other things more germane to the devaluation/erosion of America? Certainly, he's a meme worthy dude, even his supporters would agree, but there are currently bigger fish to figuratively fry, yeah?