OK, I won't dance around it.
You're right. Airline piloting was and is overwhelmingly dominated by white males. That said, EVERY airline goes the extra mile to get every qualified minority pilot to choose their airline.
The best place for you to go is the annual Organization of Black Airline Pilots (OBAP) convention. Every airline worth its salt is there recruiting black candidates. The more boxes you can check on the "diversity scale", the better your chances of getting hired are. So, if you're a black or latino woman, you've got it locked.
That said, airline piloting is still a job where you're actual skills make or break you. If you can't fly your way out of a wet paper bag, you won't last. It doesn't matter if you're black, brown, white, blue, green or purple. You can't stick and rudder, forget it. They'll weed you out evenually.
As an illustration let me tell you the story of a Navy buddy of mine. Great guy, good pilot. Spotless record as a Navy A-6 driver on active duty and in our C-9 Reserve Squadron. He was working at Alaska and went to a United interview. He got rejected.
One day we were sitting around the squadron drinking coffee and he says, "Do you think I should have told them my maternal grandmother was Mexican?" I couldn't believe it.
I said, "You fill out another application. Check the Hispanic block and tell them that you're 1/4 Hispanic. You'll be working for United Airlines in 6 weeks."
6 weeks later, he was dropping off his manuals in SEA on his way to DEN for his United class.
If you're any minority and want to be an airline pilot, GO FOR IT. The sky's the limit.