I'm probably just being obtuse, but I fail to see how one justifies either "false" or lack of "equivalency"?
Hath not a gal eyes? Fed with the same food, hurt with the same weapons, subject to the same diseases, healed by the same means, warmed and cooled by the same winter and summer as their brother is? If you prick them, do they not bleed? If you expend them, do they not die?
(eg Lyudmila Pavlichenko's ~1'500 sister snipers who died fighting Nazis)
20 million vs a couple of thousand is not worth mentioning. At that point you should start mentioning the hundreds of sub Saharan Africans that fought with the Soviets.