I mean you speak as if the choices are "democracy" or "communism", as if those are opposing sides of an axis. Those are not the same kind of things, the first is about political organisation, the latter about economics. The choice is "capitalism" or "communism", and it's looking as if _neither_ is compatible with democracy. They just undermine it in different ways over different time-scales.
(Why aren't you counting all the deaths that capitalism has caused, incidentally?)
They are organizational systems for groups of humans.
In one system there is voting, that's a democracy. In the others there isn't, communism, fascism, dictator, and everything else.
Go ahead count deaths from Capitolism. Just remember it's easily 100 million for the others in the last 100 years.
Also count the millions of lives saved by Capitalism. You know things like vaccines, computers, and other technologies invented by people to "make a buck" that would have never occured otherwise.
Ever wonder why South Korea is in the stone age? Well, there's your paradise sans capitalism. How much tech came out of the Soviet Union compared to the US over the same period. Or Japan vs. Pol Pot's China?
Please, don't be ridiculous as you turn on your air conditioner (Carrier) or drive your car (Ford) or use your cell phone (Jobs et al).
Just stop arguing to argue. You can deny human desire to achieve and create and do better all you want. That experiment has been tried over and over again in the last 100 years and as noted above the result is 100 million dead and failed states and economies. It's always capitalism that saves a state.
You can even go back to the founding of the US with the original settlers when they tried communism and half of them starved to death the first winter. Bradford smartly was like, "okay, enough of that nonsense, you work your own land and you get what it produces."
I don't even know how we're arguing this honestly after the last 100 or so years of history.
The ONLY thing that stops Trump, Biden, Obama, Bush, or whomever from being a dictator is the Constitution of the US. They would all be enticed into absolute power without it.