One of the biggest things that I absolutely despise about how WWII history is taught is how 'Hitler killed 6 million people.'

This is wildly incorrect. Hitler's camps killed somewhere around the lines of 14 million people, 6 million of which were Jews. Were Jews singled out in particular, and enslaved and exterminated with extreme prejudice? Absolutely. But there are millions of others that died in Nazi concentration camps, many of them communists, the mentally or physically disabled, homosexuals (who weren't upper class) and Roma. As well as the explicit desire for Lesbarum which would have likely seen most of the Poles, Czechs, Slovaks, Serbians, and anyone who could have been considered Slavs under Nazi race law would have been explicitly culled to a peasent farming and resource extraction class.

The Nazis were not just a threat to Jews, they were a threat to ALL of working class Europe. Our hyper focus on Nazi crimes against Jews downplays their crimes, and it is baffling to me when I have discussions with literal history majors still quoting this number. This was something the Soviets understood all too well, as was repeatedly talked about in any communist commentary at the time, with them going off of Lenin's theory of imperialism.

Notably they were transported very very far from the front lines.

Oh my god, before they were stealing Ukranian kids they were stealing Jewish ppl!!!

Source

Also to do with the reasons why it failed, was the suspicions against Zionism in the aftermath of the colonisation of Palestine. The USSR adopted an openly anti-zionist posture, and I'm guessing that doesn't exactly help the cause of creating a Jewish autonomous oblast, even if the idea is very different from that of the Zionist project.

Sidebar, but I once had a professor claim that the Jewish Autonomous Oblast was the same as the US forcing indigenous peoples onto reservations....

some Jews survived by performing acts of service and skill to their Nazi masters - a moral choice I cannot judge, that was in some cases misconstrued by soviet commanders as criminal.'

Kapos were instrumental to the operation of concentration camps. They were often informers and enforcers for the guards. Many of them were beaten to death by their fellow inmates when the nazis evacuated during the advancement of Allied forces. That was if they made it to the end of the war. Kapos were regularly murdered in their sleep or shanked by other inmates if the kapo was seen as an asshole.

This wasn't the case with all kapos, as a lot were involved in resistance efforts. Some would even take jobs for the SS doing whatever so they could get extra rations, which they smuggled back to their barracks at great risk to themselves (IIRC Elie Wiesel had this kind of kapo and its partly the reason he survived).

Anywho, my point is it's not surprising soviets liberating the camps acted the way they did towards kapos because a lot of them had been collaborators. If there was no one alive to vouch for them, it makes sense the soviets would imprison them. They probably thought what they were doing was humane.

Despite the Soviet state's official opposition to antisemitism, the spring of 1918 saw widespread anti-Jewish violence perpetrated by members of the Red Guard in the former Pale of Settlement.

An entire paragraph sourced by a single book with no page number or link given. It's a well worn technique of chud editors on Natopedia.