Answer:
Democracy is not just the ability of citizens to vote for the candidates they want. It is not even the simple fact that the government responds to the will of the people. Democracy is a form of political organization that respects its citizens, their lives, their freedom, their property and their principles.
The possibility of choosing, of saying what we thought, of educating ourselves, of making decisions freely, we owe to democracy. America, as a democracy, guarantees these rights and many more for its citizens, but there are authoritarian countries that do not, in which their inhabitants suffer from their lack of rights.
Without the right to freedom, no life is complete, so many citizens risk their lives to obtain it. Some do so by fleeing, such as Cubans who risk their lives in rafts in the middle of the ocean, but others do so by fighting tyrant governments, giving their lives to obtain or defend democracy around the world.