karl marx and the communism

Karl Marx idea's was to have a communism world. Communism it a a type of government that gives equal right to everyone, means that everybody will have the same things such as the same amount of money when you get pay and also you couldn't owner land the government will assign you a place where you live and you couldn't earn more money even if you had been studying your whole life. Karl Marx wanted a communism world because he thought that a communism world will be more fair and better. Karl Marx saw the factory owners as the "bad guys" because sometimes the workers were unfairly payed and the "good guys" were the workers because the always worked even in the worse conditions. But i think that communism never will take the world because people is too greedy.