The appeal and the reason for it (material conditions) hasn't changed, only the perception of the end result due to authoritarian abuses. Which is half the reason why socialism is finally gaining some traction in the US and UK, USSR has never been alive in my lifetime. We are not taken in by Cold War propaganda and no living example of "communism evil!" exists. DPRK is hereditary despotism or something, China is state capitalist, Cuba is suffering from a half century of economic warfare that can be laid at the feet of the US, not from Cuba's own shortcomings however valid they may be. Venezuela is an oil-state with less communal ownership than Norway, famously capitalist country. Bolivia was poor but making incredible progress, now it's been couped and native groups are being massacred by theocratic thugs.