Tulsa once had what was known as Black Wall Street. There were too many successful black men, so 1921 in the whites massacred everybody. They even brought in planes and dropped bombs.
Are we now not at all allowed to reference problems in other societies? We can complain about western society, and complaints from 100 years ago, when even my grandfather wasn't born yet, are valid criticism of America/Europe/... but things that happen today in India, Pakistan, Turkey are off limits?
There were too many successful black men
That's absolutely not what Wikipedia says. There was indeed a horrible massacre, but why do you feel the need to falsify the reasons?