Earlier quoted context omitted.
I'm anarchocapitalist; I don't believe that "working democracy" is a thing. Or, perhaps, if it is a thing, it's not what you think it is.
I'm falling for the "someone on the Internet is wrong" trap, but neverthless: Anarchocapitalism is fundamentally flawed because it rests on the assumption that capitalist markets optimize for the best utility function. They don't. Further, even in the optimization they do provide, they are flawed. Capitalist markets are powerful optimization systems, but they routinely fail, in pretty well described scenarios. Namely…
That said, I'm no capitalist. So much seems so arbitrary. Like me, most people who advocate "radical" critiques of the status quo don't do so because they seek the most extreme disaster scenarios one can imagine resulting from those critiques. Rather, they see that current society isn't perfect, and could be improved by moving away from rigorously enforced neoclassical neoliberalism.