It is interesting that you listed a number of peoples who have at various times been subjected to genocide because of their initial accommodation of outside populations in your rebuttal of my affirmation that Japan refusing to compromise its stance on immigration is vital to its survival as a cohesive and distinct nation.

>you use it or you lose it

Please explain in direct language the point your deployment of this aphorism was intended to convey as I find it wholly inapplicable.