I own Californiacation and By the Way and enjoyed them plenty at the time, though I don't go back to them much. Their early/mid 90s singles were all over alt radio and MTV and I can still get behind "Soul to Squeeze." And shit, "Give It Away" has a great energetic groove, though I keep forgetting that. I never got into their goofy funk 80s output but I know some people that stand behind them and they are a lot less lame to like since they are weirder and less popular. But yeah, if people shit on them, I don't get upset. I get it. Keidis is pretty unlikable. Flea on the other hand seems to be pretty well loved/respected across the board. Same for Frusciante and Chad Smith, though Smith will enthusiastically do stuff like Chickenfoot.
I just remember when Stadium Arcadium came out, the lead single was "Dani California" and I checked out immediately. It was a complete rewrite of Around the World with some "Mary Jane's Last Dance" thrown in for good measure. I haven't dug into them since then.