[calderknight]

I don't see any of those as negative traits.

Beliefs that are labelled as racism, transphobia, and sexism are often sensible beliefs. Combined with smelling bad, they imply to me in a person a prioritisation of sincere intellectual pursuit over popularity and financial success/social success more generally.

Pretty much every interesting person has at least one proscribed but sensible belief. Sure, it doesn't have to be one of those listed, but it will be socially indistinguishable from them. If you don't allow the expression of such beliefs you lose every interesting person who is in the habbit of speaking his mind.