I totally understand your first paragraph, sad but true, and I think many feel the same way.
Your last paragraph...I totally agree there as well, those scenarios are not managed well and I think are changing the face of the planet so rapidly that it's impossible to account for and adapt to the changes before they go and change again. It's a problem but when raised, even with good intentions, people are screamed at for being racist (which I mostly disagree with). It should be a person's right to protect their way of life and culture within their own country.