He's basically an edge lord 4-channer, Nazi saluting to: "own the libs" is sort of on brand.
I don't think he's a dyed in the wool Führer-lover. I do think he's a hyper insecure, spoiled, man-child with enough ties to the far right to idolize "anti-social behavior" and think he's the hottest shit ever to pull off such a "based" stunt.
A poser; doing loser shit opening the door for someone/something much worse because his idiot brain thinks he's being cute.