Yeah I thought that was weird, along with joining ethnic organizations. I don't really need to explain the religion thing, but ethnic organizations are weird since you are forming an identity based on your unchoosable parent's DNA. I've seen both used by leaders to weaponize their members at their members detriment.
Although, if you are doing politics, I can see this being pragmatically useful.
It's weird to think that ethnic organisations are weird when it's the most natural social group you can form. You are literally genetically similar to these people. You have a shared history, culture, etc. In a biological sense, you have an innate interest in each other's prosperity (at least, moreso than you would an ethnically-distant stranger).
You're taking your "anti-racism" to the point where it is unnatural, absurd, and alienating. People inherently want community with their kin but you are telling them that they are wrong for pursuing it.