Also, you may not have much experience with people of color, but they are politically diverse. Assuming they all think alike on issues like these is the dictionary definition of racist.
To be precise, you are assuming that the people who agree may be white because you see them as white. You appear to be white. I could say “Surprise face” now, but I won’t. If you want to disagree with an idea, you have to engage with the idea rather than the identity of the person supporting the idea. Ad hominem is the lazy out for bullies and cowards.