STFU, White Liberals!

I just wanted to say, I identify as a liberal, and I'm white. But I don't claim to know what it's like to be a victim of racism. I can speak about what I've faced being (biologically) a woman, being genderqueer, being pansexual and what I've faced because of those factors. But I would NEVER assume I know what racism is like. So this is me saying I'm sorry there are so many white liberals that give the ones who aren't presumptuous asses a bad name, because there are too many of those asses.