So what?
If "level the playing field" means my kid gets a sub standard education because you have to constantly lower the bar, I don't want to play your game.
This stuff isn't new. Everyone understands the importance of education, and everyone understands the importance of being involved in your child's education.
It isn't about poor and minority. It's about being a good parent.
Some people don't have that ability, and my kid shouldn't be punished for it, regardless of the money in my wallet.
There are plenty of examples of single parent and low income households where they value education and push their kids to doing better.
At some point, it has to be about personal responsibility and not blaming everyone else for your failure to be a good parent.