It's the internet, nobody knows the real you. The problem is generally that your stated views and opinions often don't align with what you're actually posting. We're all, probably most of us, or at least some of us, human, and we all have our inconsistencies, it's just that yours appear to be fairly consistent. I'm not trying to attack you and I hope you don't see it that way, I'm just trying to explain why you may be viewed that way.
FWIW, I don't think you're racist but I do think you have a lot of biases that you don't seem aware of