Makoto Sakurai brings to mind that old joke about the man in a pub who says "I'm not racist, but . . . "
He is not against foreigners; he just doesn't want many of them to come to Japan. The ones who are still here can stay, probably.
He dislikes Koreans, especially those who are already here and who moan about what Japan did to them in the Pacific War. Besides, he says, Koreans forget that they invited Japan into their country in 1910.