I get your sentiment, but I'll use your argument against you here: just as computing as a hobby doesn't exist in a vacuum, the enjoyment of any hobby doesn't exist in one either. I get it if you're feeling guilty by association — lots amongst us are likely feeling that way, and I started off thinking that way too, even if I, demonstrably, am not contributing to the enablement of that evil. The person knitting at home for leisure may get lumped with the fascist knitters. Their techniques at knitting up beautiful sweaters that they've shared is being used to make fascist uniforms, used as a symbol of repression. It's disappointing, but it should not be reason for us to give up on this space we've created and allow these forces of evil to take up the whole space and allow the hobby, the technique, the tool, to truly and fully become monopolized by these forces. That evil isn't going away by us staying quiet and just leaving the space; the tools are already there, and if we just passively shy away from pushing back, then the tools and narrative are theirs to control.
And all this is why it's important for us to continue participating in the discourse, even if we don't actively push back against that force. We show that normality exists, that not all the people in the space is some dickhead.
At least that's what my optimistic side is telling me, and my pessimistic side wants to believe that we can actually do that so that I don't just fine up on humanity entirely.