Equal opportunity and equal protection.
First one seems impossible given we're born different unless society becomes some sci-fi utopia. I feel you would lose all the diversity and uniqueness of people. What would equal opportunity look like? Only reward hard work? If you bring others down to make things equal, that's unfair as well.
Second one seems more possible, but in my eyes it's human nature to be more iffy about certain people. When you're in a high pressure situation instincts take over. Could be trained to react better, but I've never been in their shoes so I can't pretend to know. Plus some blame could be put on blacks, who then blames society, and then you get in the circular blame game.
I'm legit curious how equality would be solved. Given birth is random (say before there was current day people my soul had an equal chance of being anybody in the world), that is pretty much equal. Like football overtimes.