I think the better questions are why should players support a company that goes balls deep into politics and fully supports rather controversial ideology and why that gaming company does it.
This is the main issue with gaming. There is no way for players to gather together and make an impact. As consumers you need to vote with your wallet. Which people rarely do anymore.
Any ideas? Am I missing some cool Reddit group that talks about boycotting games? Just post Steam reviews explaining why we are not buying their products?