I have seen only one of the “Hobbits” movies and I was completely underwhelmed. However, the “Rings” trilogy belies your assertion that Jackson et. al. know nothing about story or plot. There is enough CGI in them to make the story epic, but not so much it detracts from the tale itself.
I disagree. I thought he screwed up many of the characters. Frodo comes across as a weakling, Aragorn is torn & divided, Arwen starts off as Xena and turns into a limp, soulful mush-eyed girl, etc.