I think this is where we differ. I don't think of racism as intolerance, as that can mean a lot of different things depending on the situation. If someone is intolerant of what they view as dangerous behavior, that's a good thing in my view. We have to be tolerant in public, but we don't have to accept behaviors in our personal home life that we believe are wrong. Ironically though, there is a lot of intolerance coming from the left these days in that they are calling people a "racist" who do not agree with the protests. This is true.
Discrimination is a word that sometimes can be a racist action, but not always. Now, if one is discriminating against another person based on race, then that is likely racism. If one is simply discriminating on other probabilities and factors, it may or may not be racism.