Bourgeois capitalism: 250+ years in power = Florida, TERF Island

Proletarian socialism time in power 20-40 years = German Democratic Republic

GDR = emerged from industrialized educated capitalist Weimar Germany

China and RSFSR: emerged from widespread illiteracy, extremely little industrialization, barely reached capitalist development stage

I think you’re right and the common factor was time, the USSR today would probably be ahead of America on LGBTQ+ rights if they weren’t already