Spoiler alert : the Jews will put it in mandatory vaccines in the US, with the weapon being bought from China, to eliminate whites 

Just find the appropriate reference loci on the white genome, use crispr to insert some kind of deletion in some part of the DNA responsible for gamete productions. Those cells stop working, suddenly a generation of whites just stops having kids. And then bam.

It's a more efficient, scientific way of doing what the Jews are doing with their multiracialism, pro-immigration, and pornography