That's not a bad point. They'd rather confront the management and have them put in new policies while firing the employees who did it, than run away to a lawyer and attempt yet another frivolous racially-charged cash grab in the courts. Only sissies do that.
This dude got fired for being a bad employee. He made a dangerous or costly mistake and they let him go. He was willing to put up with the discriminatory behavior while he was employed but now hes going to draw the line.
If there was a WB room and it was initiated by whites and he nor anyone else (be they white, black, Asian, Hispanic, male, female, transgender) said anything to human resources, well it would be hard to believe.
If his argument was there was a break room that was for whites only and H.R. covered it up and multiple people complained it would make more sense. But that's not what I've read.