Ok, firstly you are not smarter than Einstein.

Secondly. What are you on about? He said this in 1929. Lenin had been dead for 5 years already when he said this. Stalin was leader of the USSR and everything about Lenin and the revolutionary years was perfectly well known. Pretending that Einstein was simply unaware of the events that he actually lived through at the time is ridiculous.

Seeing as he died in 55

That's 31 years after Lenin. Having lived through Weimer Germany as a jewish man, watching and applauding the success of the soviet revolution, seeing the failure of the german revolution after the murder of rosa luxembourg, fleeing to the US, and watching the USSR liberate nazi Germany auschwitz and all the camps of the holocaust that he narrowly avoided being part of himself.

He commented on the US in his later life actually, in December 1947 he stated:

"I came to America because of the great, great freedom which I heard existed in this country. I made a mistake in selecting America as a land of freedom, a mistake I cannot repair in the balance of my life."

The FBI had a 250 page file on einstein, you can view it here: https://vault.fbi.gov/Albert%20Einstein

On page 14 the report says:

"Not even Stalin himself is affiliated with so many anarcho-communist international groups to promote this "preliminary condition" of world revolution and ultimate anarchy, as Albert Einstein."