Well, a key difference is that race is an intrinsic immutable attribute, and political views aren't.
The paradox of tolerance is real. And more practically, it's impossible to guarantee representation of all viewpoints because there are an infinite number of them.
> that race is an intrinsic immutable attribute
Not to those familiar with the history of the US Census racial classifications, given the number of times the categories shifted and changed it seems more than a little opinionated.
> race is an intrinsic immutable attribute
Is it?
Care you define who makes up the "white race"? Or any other overly-broad category that typically gets bandied about as "race"?
From my perspective, as someone who is flexibly categorized as "white" or "latino", depending on whatever is most convenient for the categorizer, "race" is a remarkable fluid label. Most people can't even agree on what "race" folks of mixed ethnic heritage actually are.
Race is a social construct. There's nothing intrinsic or immutable about any social construct.