Mono-ethnic Countries

Whats wrong with wanting only your ethnicity to be passed on in the generations of that native land?

Nationalies have become abstract marks of citizenship and nothing more. According to globalists, all it takes now for someone to ethnically assimilate into an ancient culture is to be born there, and not the heritage of hundreds of generations of men who have worked the land and starved themselves to feed their families and women who have labored generation after generation to birth and nurture their sons and daughters using the soil of their native land. Apparently none of that matters anymore. You can be an ugly emasculated piece of slop slung that just washed up ashore and immediately have the honor of being called the demonym of your host country.