Why are you immediately assuming racism?

Maybe I'm misreading what he is getting at. Is it more of a politeness is bad thing?

I'm trying to point out the hypocrisy of a cultural impetus to be super inclusive towards everyone, except the people you disagree with

Because opinion is transient and can be changed on a whim, unless what is part of the identity of the person (physical apparence, religion and other cor values). Being exclusive only reduce cohesiveness.