"B-buh the USSR also used Nazi scientists in their military efforts!!"
Yes. And they were basically on house arrest the whole time too.
"Well that sounds like a way of sugar-coating the fact that they were essentially forced labour for the USSR!!"
Good. The Nazi scientists could have served multiple lifetimes worth of forced labour and they still wouldn't have repaid their debt to humanity from all the atrocities that they were accessories to.
Two words: U.S. ideology and practice inspired Nazi founders and the Nazi state apparatus thereof. The US declared war on Japan specifically in response to the attack on Pearl Harbor, it did not declare war on Germany; Germany declared war on the US three days after the US declared war on Japan. Immediately after the Nazis no longer posed a threat to U.S. hegemony, the CIA collaborated with Nazi war criminals to wage a spy campaign against the USSR, in addition to America's Operation Paperclip for use of Nazi scientists in NASA and elsewhere. The “lend lease” shit is pure cope for the fact that the USSR defeated Nazi fascism by every possible margin with the reply being “yeah well we sent them stuff opportunistically.” I will laugh at any person who legitimately places the victory of the Red Army on the lend-lease.