I wasn’t referring to 30s and 70s as time periods, but the actual life expectancies. LE dropped sharply during the formation of the USSR due to civil war and WWI, and during the 30s due to famine from collectivization. After collectivization and WWII, the USSR was food secure and LE jumped sharply, combined with free Healthcare and mass housing initiatives.
Again, pre-USSR LE was far lower, and post-USSR there was another drop in LE until the last decade or so.
The US has insane growth because it managed to dodge all of the damage of WWII and export Imperialism and control over the global economy as it solidified itself as the reigning superpower. The USSR was a developing country, nowhere near as developed, and had a far more active role in WWII. Not a fair comparison, IMO.
The US has far worse housing problems even today than the USSR had. The USSR attempted to solve this problem, the US has not.
People in the USSR had far more than they had under the Tsars, and the idea that those at the top were cartoonishly wealthy is false. They didn’t have luxury goods, but they had little issues with necessities.
Holding ownership in common is the only way to have a Stateless society, Private Property Rights require a state while public property does not, as the community itself enforces this.
All in all, I am not pro-USSR. I think the process of Democratic Centralism is highly flawed and not accountable to the Workers, as the Politburo sustained itself. I also think Stalin was a horrible thug, and tragedies like the Katyn Massacre should be learned from so as to never repeat them. However, it’s also important to acknowledge that many parts of the USSR did work, and as such we should equally learn from where they did succeed.
My opinion is that decentralization is a fantastic thing, and is an excellent way to combat central control. However, this cannot be meaningfully achieved in a top-down system like Capitalism.