The Soviet Union didn't have even 1 worker owned factory, unless you're talking about the time before Lenin ever came to power. The factories were owned by the state, which in turn was owned by a dictator and his political apparatus - workers had less freedom to control the factory than Amazon warehouse workers.
Yes, they were a despicable regime, and unfortunately their name still mars the idea of socialism. They also claimed they were democratic, and surely many believed that as well, but we haven't let that ruin democracy, so we shouldn't let their laughable claims to socialism ruin socialism.
