5 sentences...Cant do that as you're asking a lot but I'll be as brief as poss
Kruschev came to power in a military coup and repressed (either removed or killed) the loyal Marxist-Leninists after Stalin tried to implement a bill that would democratise Soviet society . In his last year in power he wrote Economic problems of the USSR attacking the revisionists
Enver Hoxha (leader of Communist Albania) said that that one of the Kruschevites told him they had Stalin killed (1)
Kruschev represented the nascent bourgeois but with Stalins popularity in the Ussr he could not implement his reforms. He does a secret speech that immediately gets leaked to the West (funny that) heaping all the problems in Soviet society on Stalin which was entirely falsified. The Secret speech itself was leaked in such a way to pour poison through the Communist party - it was disseminated to the top leaders and cadres of the millions of Communist Party members (something like 0.9% of the Party). Meaning it was not out in the open that could be honestly fought and corrected. If that speech had been public the revisionists would've swung from lampposts
He let out numerous counter revolutionaries from prisons and "rehabilitated" those shot during the Moscow trials like Tukhachevsky who we know now were guilty beyond doubt.
With Stalin denigrated he was free to implement the reforms (post Stalin Soviet textbooks would legit have stuff like "profit is needed and the central planning system is a Stalinist hold over. Kruschev even declared the primacy of profit in industry in1961) starting with the privatisation of the tractor stations where the farmers basically collectively owned their means of production and by 1965 the Kosygin reforms were implemented which
-
reinstated the profit motive and the market
-
attacked the central planning system and directive system
-
allowed for the firing and hiring of people
-
gave more power to the managerial class (who previously could basically be fired by the workers and the manager couldnt fire them)
It is this restoration of capital forces in Soviet society that led to a hypernormalisation within Soviet society (ie. They're told "we're building socialism" as socialism is being destroyed) until eventually they reached a point where they just pulled down the red flag, sold state industries to pennies to the nascent oligarchs and mafia in waiting and gave up the entire thing altogether
Despite this many people fought to keep Soviet socialism alive and Yeltsin could only come to power by shelling the parliament with tanks, supported by the West and massacring 3000 Communists in the streets. To this the Western press praised Yeltsin who is now uni formally described as the worst Russian ruler in history in Russia.
Yeltsin never would've won an election were it not for the West who proudly boasted about it
For the other non-shitlib on this site that is capable of reading more than 5 sentences I would recommend reading
The Complete Collapse Of Revisionism by Harpal Brar
RESTORATION of CAPITALISM in the USSR by Martin Nicholaus
THE RESTORATION OF CAPITALISM IN THE SOVIET UNION. by Bill Bland
References
(1) “All this villainy emerged soon after the death, or to be more precise after the murder, of Stalin. I say after the murder of Stalin, because Mikoyan himself told me . . . that they, together with Khrushchev and their associates, had decided . . . to make an attempt on Stalin’s life”. (E. Hoxha, With Stalin: Memoirs, p. 31).