since they wanted the Nazis to invade the Soviet Union.
I'd dispute that based on the fact that they declared war on Germany immediately when Hitler invaded Poland, dispite the fact that he was closing the buffer to the USSR. The capitalists' real hope was that Hitler would be more of a bulwark, a guard dog who would be content suppressing communists within Germany's own borders and being militarized and prepared in case the USSR tried to expand. Hitler was granted a lot of leeway in that hope, and it's possible he misread that as either weakness or wanting him to attack the Soviets. But and the end of the day, if he wanted to fight the USSR, and Britain and France wanted him to fight the USSR, then he would've wound up fighting the USSR with little conflict with the other Allies, possibly even with their support. There's a grain of truth to what you're saying but imo it's exaggerated and doesn't fit with the facts/timeline.