Not hosting a project lead by an actual racist and fascist is fine by me. I don't understand this. Can't/don't they use GitHub? (MS famously loves helping ICE, so they're perfect matches). If nobody will host a racist piece of shit and he was forced to step back, maybe the RoR community would actually be healthier. But they still have all the usual forges.
This behavior all reads a lot like a guy going to a fundraiser for breast cancer and then getting upset that nobody is talking about type 2 diabetes. AI and Crypto engineers have a multiple huge platforms to collaborate - let people who wish to be separated from that environment of toxicity have their own too.