See Rainbow capitalism as a very related example. Nutomic is right that identity politics are used to create division among the working class, because anything that can create division will be used to do so.

I mean that part is accurate. But abandoning whatever issue it is that is being used to create division is not the answer. They use all kinds of legitimate issues to create division. The solution is clearly to get rid of that whole concept where disagreement = division. Not to say that it’s just “all good” if I think people deserve human rights, and you don’t. We can still work together on some things, sure. I’m still going to give you hell about your bad point of view. A lot of people on the left seem to have this concept like it has to be a monoculture, like everyone has to see all issues of right and wrong and good and evil in exactly the same way, and if you don’t see it my way, then you’re a total shit and an enemy on purpose and I need to try to destroy you first before even trying to attempt anything against the right. And that tendency is one that the right absolutely loves to exploit, and they have wild success at it.

(Nutomic also in an extra irony takes it a step further, because his server will not just “divide” from you ideologically, but outright ban you if you try to say that some particular people deserve human rights.)

Sure, but the fact that some people’s basic rights and freedoms are divisive is not an excuse to abandon them. We can’t create a liberated society by accepting oppression. It needs to be confronted or changed in some way. I’m open to discussing the issue differently, or focusing more speech on other topics when possible but I’m not open to letting people be subject to state violence because their existence is unpopular. So what are we really proposing here?