They were busy fighting WW2 at the time, I think Churchill knew very well what the commies were. It was Roosevelt who seemed not to think the commies were bad guys. Just check the telegraphs in this thread.
In #4 FDR seems to think the commies in China are alright, because they like “anyone who will kill Japanese”
In #5 Churchill knew very well that China was going to be engulfed in civil war with the commies.
Agreed. I think Churchill was clearer about freedom from government tyranny than Roosevelt whose policies embraced it.