A few points:

1. You misunderstood why you were shooting the Pinkertons. It wasn’t because you were forming unions, it’s because you were costing the government money.
2. You are overestimating the amount of people actually care about that sort of thing. The sheer numbers of people who say one thing and then spend their money however they want is exponentially more than any that would abstain.
3. GTA6 is going to be a zeitgeist touchstone game. People are going to buy it and play just so they won’t miss out and to be able to be a part of any conversation.
4. People aren’t going to pirate it. “But it’s easy! And it doesn’t give money to R*!”. Is it as easy as giving a clerk $80USD? Then people who couldn’t care less about the ethics of R* aren’t going to pirate it.