The USSR, PRC, Cuba, and DPRK all hold elections and practice(ed) some form of democracy.
They were not structured like Capitalist elections, but nonetheless had and have elections.
Social Democracy depends on Imperialism and Capitalism in the global north, is inherently unsustainable, and sees sliding of worker protections and rights over time, just like what happened following the New Deal in America. Reading theory makes it clear why.
They're sham elections. You telling me that fucking haircut in the DPRK is God emperor of North Korea because he has some mandate from the masses? He's atop the throne because he's the son of the last blowhard.
You do realize you've moved the goal posts over time, right? Flawed democracy is still democracy, and if you're going to pretend it isn't then we have to agree that the US isn't a democracy either.
Not voting at all for your leadership isn't democracy.
It has nothing to do with flaws, of course countries have flaws.
If Trump manages to turn the country into full on dictatorship I'd acknowledge that as what it is, instead of pretending that it's a flourishing democracy.
Besides all of this, China hasn't even gotten rid of capitalism anyway. So they're not only a dictatorship but they're also practically a fascist one with worker aesthetics.
Half of the shit we buy in America is made in China by wage slaves who cannot advocate for themselves under threat of being carried off to jail or executed.