Actually, I wouldn’t worry too much about it. If it comes down to it, whites will brush off blacks without a lot of trouble. God help blacks if it happens. It will end in disaster for them.
I see what you're saying but please allow me to quibble just a bit.
I can't see how getting rid of the underclass, by whatever means, can redound to anything but our benefit.
Can you imagine how wonderful that would be? We'd empty our prisons and free up our courts. We'd save untold trillions in future wealth transfer payments made to keep a lid on the anomic dung heaps they call "communities."
Suddenly, there would be no pressure to continue to "dumb down" our kids so that their idiot spawn can wallow in undeserved feelings of manufactured self-esteem.
The rate of abortion - the existence of which steadily corrodes our moral fiber - would become a politically manageable issue (as it is, liberals like Ruth Ginsburg must keep it legal so that they can keep the "problem population" under control).
The list goes on and on. Ridding ourselves of this social cancer would be the best thing that could ever happen to this once-great country.