It didn't stop me watching the show, but in Batwoman S2 when Oshun kills the manipulative psychologist in such a petty asshole-ish way, it just ruined so much intrigue for me and I stopped caring about him as a character.
The show had a lot of other problems, and pivoting into ACAB drivel (oh but its private security being criticized not cops so its totally different lolololol) really made me want to give up. But S3 dialled up the sapphic angst so I was determined to get that far.
Then it got cancelled anyway. So I guess killing off half the interesting characters made everyone stop watching it anyway.p