Democracy, they way it defined in a modern sense, is worthless at protecting freedom. Anybody who thinks otherwise is completely deluding themselves. The ability to vote is no guarantee or protector. Public opinion is far too easily manipulated. The politicians and major corporations are now far far far more sophisticated in their ability to manipulate then they ever were in the past.
True freedom for society at large will be realised when things like governments, laws, and taxes are voluntary. True democratic government means you, personally, choose. Not the majority, not your grandfathers, or founding fathers, or anybody else... But YOU. YOUR CHOICE. Your choice to belong, to pay your dues, to obey their laws or to just drop out completely and move some place else that has something more of your liking. THAT is true Democracy.
The reality, though, is that freedom is still to far of a radical concept for most people to accept in its entirety. People prefer to be ordered about by threat of the gun rather then depend on themselves and others in a society without strict controls. Other human beings being able to exist without external controls are far too frightening of a concept.
The internet is a good at helping progress, however. Human beings are now, for the first time in history, to be able to freely and cheaply communicate with one another without government intervention and censorship. Information and knowledge is becoming free. Educated populations are much more difficult to control. Knowledge and educational opportunities previously only accessible for only the richest people in the richest nations are becoming within reach of the rural poor of the world.
People will begin to realise that the governments and major corporations depend on them for existence. They will begin to understand that the ruler's goals are not to benefit individuals in society, but are primarily designed protect and benefit the people in power. They may even figure out that major international corporations can only exist because of government controls and regulations of the markets, not in spite of them.
Or maybe they won't. Hell if I know. Either way it's not going to happen in my lifetime.