If you want worse case scenario for starters, try half white half Asian.
I'm not sure, but I think I'm both "north" and "south" Asian, not sure how much.
What happens is you try to pass as white and everyone hates nothing more than someone who's not mostly white passing for white. People who are even darker can't even try to pass as white if they wanted to. I guess in places like Orlando where I live people know I'm not all white. That happened to me in Jacksonville, Northeastern Florida, too.
So, mixed race people have it the hardest, and people who are more than one kind of non-white race can often look whiter than someone who is mixed white. I feel like I'm spewing racial hatred as a mixed white against understanding other races who aren't white.