Sargon's video also touched this very same issue and I do find it odd. I mean to their eyes me, as a white male gamer, am able to have an opinion. No matter how wrong it might be to them. But if a person of minority has a wrong opinion then he/she becomes a baby, someone who isn't even capable of forming his/her own opinions.
This is just my opinion so keep that in mind.
I don't think SJWs like racial minorities. Sure they're all for equal rights in theory, but they rarely associate with racial minorities. I think their general response to minorities that disagree with them is quite telling. I think SJWs see minorities as the useful idiots who must be shown the "correct" way because they're too incompetent to do things for themselves.
In anecdotal evidence, I've personally encountered several situations in online forums and twice IRL where a SJW(IRL it was white dudes both times, Internet I'm 95% sure they were white) told a racial minority that their view on something was wrong. I personally found it both hilarious and disgusting that some upper-middle class white dude would preach to a fiend of mine(who is Mexican) that racism between blacks and Hispanics doesn't really exist and that it could only be racism if a white person hated someone. Thomas handled it a lot better than I did, and laughed in the stupid pricks face and called him a clueless idiot. The other experience ended with a string of expletives being shouted at the SJW which would show up as a string of asterisks if I typed them here. I wish I would've recorded it, because it was funny as ****.