Hardly an attempt to sieze Russia.
Tell me where things would have stopped if the Whites, Allies, and Czechoslovak Legion had gained the upper hand.
In no way would it involve the UK or US controlling any part of Russia.
Also, the Whites were Russian. The Bolsheviks had no claim on representing Russia any more than the Whites did.
It would be an amazing thing if bolsheviks could be strangled in the cradle. I think only Poles had a chance if they waged their offensive through Ukraine better, western powers had no real say in any of it after the ww1 bloodletting nobody was going to go invade Russia.