Democracy + society = stability?

Countries have proudly proclaimed their democratic political systems. And definitely, political candidates have sprinkled their election speeches with ideals of democracy as if it is some miracle drug. Actions speak louder than words and history proves that democratic nations have their fair share of stability and are prospering, say America for example, and Singapore. Stability can manifest itself in various forms, the more common ones being financially, economically and socially. China, Russia and England are other countries that are perhaps even thriving without democracy. However, i shall put other political systems such as communism, monarchies, autocracy or conservatism aside and concentrate solely on democracy.
Basically, democracy is about the means used to achieve goals, with a greater good for the society in mind. While implying values such as peace, reconciliation, dialogue, consensus and most of all, choice. There are also various sub-systems that work cohesively to ensure the smooth running of democratic politics. That being multi-party politics, representative government, voting, and other systems. Voting is one of the most important components of democracy. It is the main platform that citizens of a society will be able to exercise their freedom of choice. I believe that democracy should be kept free and fair as much as possible which would in turn allow citizens to truly express their individual preferences and not be inclined or influenced to follow a certain trend due to the fact that they are under the pressure of a majority. Voting as such can satisfy a large majority of the society as it takes into consideration the opinion of each citizen before making a choice. Though minorities are sometimes taken out of the picture, the government sometimes arrives at consensus to satisfy various parties in the choices that they make. I think this is one of the reasons why democratic nations are usually stable. Much unlike authoritarian states which have collapsed with the test of time due to their intolerant rulers who failed to build consensus among it's people for polotical and economic liberalization. Though they might seem like a peace-living nation that promotes the cohesiveness of various ethnic, religious or racial groups, it might just be dominated solely by one group. And as much as democracy seems to advertise or encompass liberalism, they are might be liberal, but they're concerns and voices are never heard and just drowned under the dominating din of the majorities. What might seem like a stable society might be in fact a suppression of other groups.
Thinking of voting in itself, democracy is supposed to promote the freedom of political and intellectual choice, but in what way is forcing us to choose the path we want to take freedom. Either way, we would still have to make a choice and perhaps thats why some people leave their votes void for they find no choice worthy of their support. Correlation between various groups within society is good. However, this would sometimes mean that minority groups would be rejected. Slowly but surely, their threshold would begin to fill up with the frustration that their cries and pleas would never be heard. Which might ultimately culminate itself in a civil war. Finally expressing their concerns on a violent scale.
Thus, i believe that democracy is like a political hulk that has the power to do great things if it can be controlled. Good democracy has it's roots deep within the power of the people, and the limit of these people's power depends on their intellect which originates from the simple idea of good education. Democracy has more than just the potential to create stability within a society, it can maintain that stability for years to come if put to good use. Countries should deal with problems like how minorities should not be oppressed which might eventually result in undesirable outcomes. Or "pseudo-democracy" like what seems to be democracy but is just the flexibility of choice within another political structure. Electing dictators might also pose a threat, this exposes the possibility and danger of entrusting a majority of social power among a group of individuals as that would give them the power to crush all other opposition.
With all this in mind, democracy is most definitely able to create stability within societies. And like anything in the world, it is not perfect and it's citizens would have to look out for signs of the system waning towards undesirable outcomes.