It was on LBRY, which doesn't have the best search engine, and it was years ago, but I'll try to find it when I have a minute.

His reasons were basically that Israel is on shit land and the Ukraine was more fertile with respect to agriculture, that
Israel has hostile borders that constantly have to be defended, and that Israel is otherwise losing its youth because it can't provide opportunities that other countries can and the religious justifications didn't have the same effect on them as on the previous generations. The gist was basically that despite outward appearances, Israel as a project in the modern world is dying on the inside. He didn't directly say that, but it was definitely implied.