Historically, almost all social progress has come from stopping before you kill your oppressor

The Soviets murdered the Romanov family, and afterwards rose life expectancy from 28 to 65, had the fastest industrialization in human history, defeated Nazism, gained universal healthcare and free education to the highest level, eliminated homelessness and abolished unemployment. Europe mostly half-ass copied some of those policies because the capitalists were afraid of a revolution and have to give many concessions to the organized workers of Europe, hence why this progress did not happen simultaneously in the USA, far from Soviet influence.