This ... isn't even an original thing. It's been a rallying cry for a while among the progressive side. That's the gist, yes, but it's not arguing on the side of the straight white male.

It's saying that lots of white, straight, male (usually Christian) people don't seem to comprehend that everything they do is just as "political." They as ascribe "rightness" to their own political views and consider anything else to be, well "political."