Problem is that I now know for sure that by giving him money, that money is going to organizations that promote fascism. So, while I can't control where people spend their money, incan control how much of my money goes into their bank accounts. Same reason I would refuse to pay for anything Harry Potter. I know the money I would spend will go to royalties that JK Rowling will then give to organizations that spread misinformation about trans people or outright tell people that attacking women who even look too masculine, like Imane Khelif, is not only OK, but virtuous.

But since I already gave them my money, I'm not going to abandon what I paid for. In fact, if I did that, I'd be effectively giving them more money as they'd have less traffic to route that was already paid for.