Anyone I know from LA were hardcore 49ers fans growing up, and were Dodgers fans, and then they were Giants fans, and then they were Dodgers fans again, and then they were Rams fans - and then add the massive influx of Ohtani band wagoners. Don't even get me started on the basketball.
California sports fans are the absolute worst when it comes to band wagoning. The Dodgers and Giants have some passionate fans, but I always get the impression that the majority of LA fans and Cali fans as a whole have a lot to do in Cali, so being invested in sports isn't as big of a deal. I say that as a DFW sports fan, that acknowledges our fans are pretty lame.