It probably makes sense to think of identity politics more as a religion than an ideology. As an ide

It probably makes sense to think of identity politics more as a religion than an ideology. As an ideology it has a way of crumbling quickly under much scrutiny. Reductio ad absurdum tends to be pretty effective in one of these arguments, except it's not effective. Those argument don't convince adherents.

Religions are good at establishing social norms, powerful norms. If a person violates those norms, they get cast out. Which really does a good job of enforcing a moral orientation. And that really seems to be the goal.