Marrying a white girl first and moving to Japan second to show I’m just into ethnostates but not asians.

https://www.youtube.com/watch?v=hRpnJHnfVps

It seems that Matto is trying to cultivate a Japanese audience and eventually try to sell them some kind of scam. English speakers already know him and don't trust him anymore. He may find it easier to scam Japanese people, given that they don't know about his past scams.