That's not the point. If you're willing to hate a group based on a moral absolutist point on clean sport proven against one individual, then holding up and supporting another group that itself has a key individual with past transgressions, it's not that you care about ethic and clean sport, it's that you don't like one of the teams.
In plainspeak, if you don't like BTC cause anyone associated with cheating rubs you the wrong way, but you like OAC, then you don't actually care about the clean sport bit you just don't like BTC. Which is totally fine. Free country, hate BTC: sponsored by the big bad swoosh, have vacuumed up top talent for a decade, emphasis on running fast vs racing; with UAC a shadow of NOP, BTC 2022 make a great Goliath in many narratives. Just encouraging people to be honest with themselves about why they like dislike a group.
All that said, I'd encourage people to join the side of enjoying both teams having awesome seasons and having some entertaining characters.