Yeah, you would prefer a Greek "for god's sake, shoot somebody" Lenin.
Of course it was Lenin who signed humiliating peace terms with the Germans. Kerensky is the guy who tried to continue fighting a losing war.
Kerensky was a guy who did not believe he had the right to make major decisions, as he was an unelected caretaker (he was only in - very limited - power for a few months anyway - the original Provisional PM was Prince Lvov). Elections to the Constituent Convention were held, as planned, shortly after the Bolshevik coup. And the Bolsheviks lost miserably (got about a quarter of the seats) - upon which loss they send in the guards to kick out the duly elected representatives of the people.
BTW, not that I care much about it, but the war was hardly losing - within a year the Germans collapsed themselves, and Russia would have been on the winning side.
Well I am more trying to make the point that SWEs analogy doesn't really fit or perhaps that his ideal revolutionary will sign a even more terrible deal in exchange for consolidating power.
As for the war that's true, but the russian army was in terrible shape to hold out another year.