Don't let Americans and other people in free societies turn you off of democracy by their complaining. That's the nature of democracy, and people. When human beings exercise their right to free speech, they usually complain.
The reality is that a great many problems still plague systems around the world that Americans do not generally have to worry about. The sad catch is that, because Americans do not have to worry about those problems at home, they are largely ignorant of their existence abroad. America is a big island. People who live there do so in relative isolation from other societies. They are prone to seeing their domestic issues as huge, when by global standards they usually amount to zits on the face of the Statue of Liberty.
The bright side to all this: democracies have great power of self reform. And it is in the complaints, in the ferment, in the plastic surgeons going to work on the zits that things improve. Good things come of it. Ferment of this sort ended slavery, acknowledged equal rights for both sexes and all ethnicities, and today it is leading to equal marriage rights for all. The umbrella of protection provided to other democracies has enabled the people of those places to make similar progress on their own turf. (I write this from Taiwan.)
So you have to take the tumult as part of the good. Discontent is the fertiliser in the garden of democracy.
Democracy, at bottom, is a system of asking people what they think. Questions are built into its structure. Democracy requires asking--regularly, even building a structure for asking--as the fundamental way of doing business. 'How are we doing?' 'Do you like the path we're on?' 'Do you want to see someone else in charge?' When you ask, people tell you. They have the right to say.
It would be nice if this always led to informed, constructive discussion. In practice it does that, but also engenders cartoons like the one above, endless whining, and confrontations that generate more heat than light. Everything goes on. Human society is a complex system, and democracy lets you see and hear that complexity. If you have an idea that human society is supposed to be neat and linear, you're in for a shock with democracy. It seems sloppy and disorderly. But it isn't, really. Chaos itself is a subject for science, because chaos itself shows a sort of order in the grand scale. Democracy works that way. In the larger scheme of things, things get sorted out. It works. History shows this.
I'll take the rough-and-tumble of free speech any day over unison, scripted shouts of praise (that no one really means) to blimp-sized statues of dictators. History has shown how that approach works, too.