was fully expecting this to become a manga where the premise was essentially, "be gone, thot". but considering how the first chapter ended, it still has a chance to become so.
also, regarding the propaganda about mass migration - i mean you got to keep in mind we're talking about japan here. they have a declining birth rate and an overall declining population, with one of the oldest populations in the world, with the side effect that there'll be a time where taxing the youth won't be able to offset the cost for elder healthcare, despite all the media and incentives that the japanese gov't placed that its people should reproduce. i mean, some people attribute japan's current culture of work-until-you-die because the smaller labor force it has, has to put in the effort so that the older population can properly be taken care of. so, last resort would be to integrate a bunch of migrants to replenish the labor population.