Is Kevin Hart a racist homophobe?

I'm not sure about the "racist" part, but their 2011 tweets (I think) were particularly problematic. Not only were they frankly homophobic, but he threatened physical violence against his son if he played with dolls, sexualized his son, said he would do everything possible to prevent his son from being gay, etc.

The general problem

He says he grew up and has changed since then, I hope he has.