I think that he wrongly believes, because of his self-created social media bubble, that there's a like-minded majority of people everywhere who want white people back on top of a hierarchy, and if he can just tip things a little bit he can make it happen and he be a great hero for leading it.

I hate to point to people's family but since he has seemingly doubled down on their views I think it's ok to point out his grandparents were pro-Nazi in Canada and moved to South Africa BECAUSE OF apartheid. It's not surprising if he was raised with some strange extreme views