So, Medium writers do zero research, and yet you said "Tell me a single law that Trump passed that is racist?"
Why do we have to tell you? Is it that you aren't prepared to do your own research?
Try this:
https://civilrights.org/trump-rollbacks/
That's not just racism, though, it's far broader than that, as he also attacks women, the poor, and so on.
And that's just the laws that he rolled back.