Can’t see what your original comment was, so missing a lot of context here.

I agree with what you said, but race as a biological thing is not how most people think of it. Most people interpret race in the context of skin color and ethnic groups, i.e. in a sociological context, and within that context it makes absolutely no sense to claim that race does not exist. It would be nice if it didn’t exist, but that’s not where we are right now as a society.