How to systematically understand the western democratic political theory

I personally believe that the issue of political system is more complex, the Western countries political system is a lot, such as constitutional monarchy, separation of powers, etc., and so on and so forth, but they are a little bit of the same so they can *** with the same support for capitalism, which shows that there is no exclusivity between their political system, and can even be said to be mutually influential, because we know that the Declaration of Independence is inspired by the Declaration of Human Rights, and the Western capitalist countries revolutions have been the French Revolution and the British bourgeois revolution and the American War of Independence influence. We all know that the Declaration of Independence was inspired by the Declaration of Human Rights, and that the revolutions of the Western capitalist countries were all influenced by the French Revolution, the British bourgeois revolution and the American War of Independence. But our country is different, our democratic centralized system is based on the people as the master of the house, which is in conflict with the Western system of government, the interests of different places is very troublesome, resulting in the two sides do not **** the same language, just on the essence of the nature of the international cooperation we see now does not touch the essence of the cooperation and these cooperation is just **** the same problem, just like people need to eat, just not enough rations to put We can't say that we can learn from each other, so we have a clear position that "only socialism with people's ownership can 。。。。。。 be realized." This is that there is no reference space between the two, because the ideals are not the same, although socialism in the process of development in some places similar to Western capitalism, not a reference to the Western system of government, if that would not have been the Cultural Revolution, so people say that China's socialism is in the process of painstakingly groping for the way forward. Later, Deng Xiaoping also said that "the plan also has a market", such as the Great Depression, the West recognized that the market also has the same economy, as with the people have to eat, the habits are not the same, you eat rice, I eat dry food, to say that the reference that is two good things to grow out of la the same advantages.