I think you might want to clarify your conclusion drawn from this, it is currently open to some rather unfortunate interpretation.

Setting aside the - grave - misunderstanding: Why are humans like this? “Oh no, all these black people will come here!” (slurs removed for legibility) Has any Japanese city had an influx of african migrants? Has any place in the world ever been actively “flooded” with migrants of a vastly different culture in recent history? If it sounds stupid and unbelievable, why do so many people choose to just believe instead of checking the facts?