Oh it's always fun when they feel the need to address things like female circumcision, sati, or racial hatred between non-white groups (when they can't be ignored or lied about, which is the preferred method of dealing with such things- EX: "Islam is feminist!"). It always comes back to one of three excuses.
- Evil white imperialists taught it to them to act like this (occasionally there really is some European influence, like the Hutu/Tutsi split although by no means were they "taught" to hate each other, but more often it's a complete lie, especially the more vague they are about what the European influence was)
- It's a result of poverty, which is whitey's fault. If they didn't get all their resources plundered they wouldn't be acting like this (whether there's any actual connection from the practice itself to European imperialism doesn't matter, things like the conflict between Muslims and Christians in Nigeria are whitey's fault).
- This thing that blatantly goes against other left wing values is good and empowering ackchyually, but only when non-white people do it.
When someone uses one of these three excuses it's almost guaranteed they're part of the anti-white cult part of leftism. All the evil in the world must trace back in some way to "whiteness" the original sin.