You can certainly make a case for that. I don't think I would go so far, but it's true that Communism was a terrible threat.
In the end, of course, we went in on Stalin's side and helped save the Soviets, so if that was the plan it didn't turn out too well.
I suspect an alternate view of history to that which most of us have been taught.
I believe that had Churchill not made the English and others paranoid over the growing German military, then there is a chance England might not have joined with France to declare war on Germany.
Many leaders in England believed that Germany had no quarrel with them.
They may well have been correct (at least in their day), for Hitler pursued the war with England half-heartedly, desiring above all to attack Russia.
But to give credit to Churchill--while it may be true that he aggravated tensions at a time when Germany may have had no desire to war with England, Churchill may have been correct in the long run--that it would be unwise to allow Germany to conquer too much of Europe and seriously upset the balance of power in Europe.
And besides, Churchill would have known that weakness sooner or later invites attack no matter what.