contestada

This isn't really a question with a correct answer. It's an opinion I'm asking for

My spanish teacher grades a little bit based on my accent, but I'm white as **** so of course I don't have an accent, I can't roll my 'r's', and yeah. My teacher always removes some points because I just can't do it. Sure I'm probably overreacting, it's just a few points but it bugs me. Is that okay to do? To grade a student because they actually can't do it.