I certainly can add there are plenty of whites to avoid as well, but given demographics, you can avoid most problem whites. With blacks it is just best to avoid all of them.
At least if trouble whites would attack you you would not have all other whites join them. With blacks, chances are a whole lot more would join in.
In a room of 30 white men, statistically you are in the presence of at least 2 software engineers.
In a room of 30 black men, you are in the presence of at least 2 murderers.