Democracy is many steps ahead of all of its competitors. As for the stuff about democracy being a perfect system, I never said that. I said that it is better than the alternatives.
Even if it's better than existing alternatives, which is arguable, it doesn't mean better alternative is in principle impossible. Which is entirely my point here.
You can say your car is better for you than the alternatives existing in the market. Saying it's the best for everybody and (with tweaking) will be the best forever, is a very different statement.
Ok, and how well do those alternatives work in practice?
Well, one example is China. It is already the biggest economy in the world by PPP and going to be nominally the biggest one in next several years. It is an emerging superpower, which is going to dominate the world's politics in near future. May be we should all adopt their system, just "tweak" it a little bit to allow more personal freedoms? Just a suggestion.
Many alternatives has never been tried, such as stateless societies (anarchy, communism, etc.) May be it is our future, who knows?
We can argue whether or not Russia is a real democracy (it seems like a kleptocracy more than anything) but even so, is modern Russia not more wealthy compared to its predecessor?
Russia didn't become much wealthier comparing to USSR. There are more personal freedoms, which were introduced during Perestroika in late 80-s. In some aspects, for example, mortality, life expectancy, quality of education, etc. we lost a lot, only trying to catch up last decade. Under Putin, which isn't considered in the West as particularly democratic ruler either.
Eastern Block contain different examples. Baltic States are ok, but there are also Ukraine and Moldova, which became basically failed states after they got independence, while "less democratic" Belorussia, Russia are alive and well.