Don't waste time on semantics.  If you say "Property is theft" or "America is a democracy" we both know you don't expect me to call the police or to start insisting that Americans must all get together on every trivial thing. 

http://en.wikipedia.org/wiki/Democracy

"Democracy is generally defined as a form of government in which all adult citizens have an equal say in the decisions that affect their lives" - where I live, we have a close approximation of that.  I know America has its stupid Senate where small States voters have massive over-representation and you have judges that make law so things are less democratic for you.  But its still preferable to being occupied by a foreign power.