unspy... you're a bit too "Amerocenter" in your arguments, like if the entire World was in conspiracy against USA or if there were a rule "who gets USA wins the World".
By the time of Marx and up to the end of WW2, USA wasn't more important than, for an instance, Brazil, nor by the time of the Soviet Revolution. Calm your horses... the "ages of the American Empire" will eventually come to an end; nothing is eternal.

Democracy is a way to choose, not a form of state by itself, and not "mob-rule". It's the only way to choose and where Pluralism (more than one idea/ideology) can live together. All currently Democrat countries are Constitutional.

Also to note that, unless uneducated people, everyone can understand that if you go get "your freeload" at treasury someone else's paying.

Democracy is like an "Operating System", the culture of the people where it is is like the computer. There's a demand for culture in order for Democracy to can be a good form of government.
You can't install Democracy (say Windows 7) in Afghanistan, for an instance, because currently that population is more or less a 486DX33 computer when it comes to culture. OTH, if you consider Dictatorships as Win 95, you'll have a lot of nags to run it in a system equipped with an i7 CPU.