I think he released it because he felt compelled to make a "statement".
Well, good for him! Tell me something I don't already know.
Some people may be shocked by what's going up, but I grew up in a part of the country were Fascistic impulses were pretty open and racism was hard-wired into the system. So AFAIC, this is nothing new except that now it's been handed the keys to the government. They're playing for keeps and they now have all the necessary tool at hand to go as far with it as they want to.
So forgive me if this piece of...whatever it is, doesn't particularly resonate with me.