So now, after having over 4 months to research my query, can you give any examples of Socialist countries that did NOT devolve into authoritarian dictatorships?

Oh joy, more Cambridge Analytica agitprop.

“she could not win the support of her own party”

Perhaps you can point to some examples of Socialist countries that did not devolve into authoritarian dictatorships.

“Stalin rolled both of this back”

Unfortunately, Socialism hasn’t yet been able to get to the point of actually implementing any kind of social justice, big-time or otherwise.