Life long Star Wars fan, it's too soon to say that they ruined Star Wars. But after The Last Jedi and Solo, they may have turned towards the Dark Side.
Marvel however has been great. Endgame is on track to breaking just about every movie record. And it was one of many great films. I'm not sure where they go from here, creatively, but I am still looking forward to it. After the next Star Wars movie comes out, I don't know if I can say the same thing.