The real barriers are drug use, substance abuse, breeding without marrying, income from government checks rather than working and an entrenched gang banger culture which preys on all of the foregoing.
I can show them scores of neighborhoods in flyover country which lack these self-created barriers, have functional schools, employed intact families, low crime rates and, more often than not, even lower incomes. Why do you suppose that is?
And this is about a resident who decided to throw a end of the year party totally disregarding the rules for membership at the private neighborhood pool (she got a DJ, food, drinks and sent invites online) that is restricted to the neighborhood residents who PAY for it's upkeep, lifeguards, etc. And the place was overrun. RACE had nothing to do with it (a mob showed up where they were not allowed). Period.
Because they are White people.