[gdy]

But Molotov-Rippentrop pact is a direct consequence of the Munich agreement that clearly signalled that the West doesn't intend to fight Nazis and the USSR would be alone.

The same signal was reinforced by the failure of the USSR to form an anti-Hitler alliance with France and the GB.

The events that followed prove the lack of will to fight Hitler on part of the West - the Great Britain declared war on the Germany after it invaded Poland, but this war is called the Phony War for a reason - the GB didn't actually do anything.

So when you reduce the history to "the USSR signed the pact with Hitler and they together started WW2" it is at the very least uninformed.