There’s…a lot of flaws in that description of the Tulsa Massacre. Its not wrong, per se, but it leaves out so much context. Like, and this seems pretty key, the white mob (“protest” seems imprecise, because what were they protesting? Dude was arrested…) BELIEVED that the accusation was rape. According to the police, the young man grabbed her arm. Perhaps it was malicious. Perhaps it was an accident whose significance to the “victim” was amplified by cultural factors (the racial difference between the two, the sexual harassment she presumably faced daily as a female elevator operator, the fact that it was slow day with fewer people around, etc).
We’ll never know, because reports of the attack were subject to a game of telephone throughout the day and then white people burned the city down. Trying to boil the motives of an event like that down to a single cause is folly - different participants had different motives.