He's right, but let's take it s tiny step further....
If I were a communist Chinese, and I gained control of the government through paid politicians, I could get them to import more and more communist Chinese from my home country as "refugees" or "migrants", couldn't I?
You blacks, Whites, and Hispanics couldn't legally do anything to stop me, especially if I rig the elections using those same puppets.
Soon, after 2/3rds of the population is communist Chinese, I could get commies openly elected, and dissolve the Constitution & Bill of Rights.
Then I could import MASSIVE numbers of communist Chinese, even have the Chinese army imported to "keep order"...
Soon, all you blacks, Whites, and Hispanics would be rounded up & put in work camps, to be worked until you died, and went extinct.
And it would all be nice & legal-like.
The puppets I was using would have already been guaranteed to breed into the last existing race (Chinese), so their families wouldn't disappear, but their genetics would eventually be so dilute they would be nothing more than Chinese, themselves.
Genocide, but all done legally, with just a few stolen elections to help it along.