State Dept combined with BoJ probably threatened enough ministers to back him.

The gay marriage shit is to continue the dropping the birth rates and normalize degeneracy out in public. Japan is overpopulated as is and doesn't need more people, as in they don't need immigrants either. It will level out its own but the economy needs to be reset, it's been a zombie for decades. Until the BoJ and the zaibatsu are completely flushed, they will continue to be a slow moving puppet for the global elites.