Last Jedi just made so many questionable plot choices which can't be taken back, and didn't pay off on any of the intriguing questions Force Awakens set up. I don't care at all about seeing ep. 9 now since almost all the characters I care about are dead (and even most of their nameless comrades for that matter), and the rules and themes of the world now hardly make any sense.
Then again, I was pretty bothered when the Republic was destroyed in Force Awakens, and then they immediately cut to scenes of Rey and BB-8 lost in the woods. I was thinking, "Doesn't anyone else care that probably trillions of people and the seat of power they fought to take back in the original trilogy was just obliterated?" What are they even fighting for anymore?
Of course Last Jedi was a beautifully shot movie with amazing action and effects, and Mark Hammill's performance was excellent. Guess that's all that matters, right?