When I think of Khrushchev, I remember old plaque at my my university (Kyiv Polytechnic), which showed timeline of advancements in computer science, in two colors: Soviet in black, foreign in white. Black ones stop after Khrushchev ouster. In general he is my favorite Soviet leader after Bukharin. However I fully understand why people dislike him: he made a lot of things right, but a lot of it wrong.
That 'victory' led to his retirement.
Do you honestly think that man who survived two similar coup attempts couldn't survive this one? Truth is that only reason Khrushchev lost is because he didn't fought. He got tired of ruling a superpower. Reading his actions before the coup he was all but saying "Yeah, I know and I don't care". And it was smart thing to do, Brezhnev couldn't retire even through he attempted multiple times.
ramping up the arms race with Bombers and Missiles, a poor choice given that the USA could spare the $$$ for the game of Deep Pockets, the USSR could not.
You don't understand Khrushchev plan. It wasn't done to compete with USA who would,ve ramped production on their own regardless of his actions. "Missile gap" ring a bell?
Look at Red Army size after ww2. Now imagine how much that army cost to USSR. Khrushchev was slashing down Red Army to more manageable size, while at the same time increasing amount of nukes therefore (at least to him) not sacrificing defensibility of his country.
If you leave aside the execution of Beria, remember that none of the leading Soviet Communists who ran afoul of Khrushchev--Malenkov, Molotov, Kaganovich, Shepilov, Bulganin, Zhukov--was executed or sent to a labor camp. They were assigned to lesser jobs or retired comfortably on pensions. That in itself was a marked change from the Stalin era--and it set a precedent which of course benefitted Khrushchev himself when he was ousted.
Some argue that was basically invitation to plotters, since now they didn't had to risk their lives in case of failure
Khruschchev was the secular equivalent of a religious zealot. He truly believed Communism was the answer and the solution to mankind's problems, and was driven by an undying faith that his religion would ultimately triumph. His oft-misquoted "We will bury you" was referring to his belief that later Western generations would look upon Capitalism in the same way that people today look back on the Middle Ages.
Like many zealots, Khruschchev was also ruthless and was willing to go to great lengths to see his vision fulfilled. He was given the reins of an inherently oppressive regime where checks and balances didn't exist and was able to run free with his ill-informed ideas about economic development, industry, and agriculture.
It's often memed that Yeltsin dissapointed in communism after visiting American supermarket, but what people forget is that Khrushchev was first to do so. I think it have caused cognitive dissonance in a man who fought in revolution and world war, to see that he might be wrong. That can explain his rush to overtake USA, to prove to himself that he was right. And, honestly? He was probably the only Soviet leader who come close to achieving that.