"The United States saved millions of Russians in the Post WWI Famine. "
They did - they also attempted to bring down the new Government, including participating in The Civil War on thee side of those wishing to send the people back into the War by invading Murmansk, Archangel, and Vladivostok.
The Soviet Government was not recognised till 1933, ironically when Stalin had his feet well under the table and was beginning to dismantle Socialism and remove opposition - hardly conducive with peaceful coexistence.
Aid from America seldom came without a demand for something in return.
Jim Carroll