You seem to be making a false correlation between failed countries and socialism. I would argue that socialist ideals are not what caused them to fail. There are many countries in the world that are socialist and yet at the same time are not fascist, totalitarian, genocidal disasters. I live in one of them (Canada). Here, we enjoy a very good quality of life, have a decent amount of civil liberty, do not have out of control disease, crime and tax rates, have (practically) free access to critical health care and can still affect change in some meaningful way in our politics. Communist countries fail, socialist countries fail, republics fail, monarchies fail, capitalist countries fail, democratic countries fail etc. They all fail because the natural structure of our society as far back as written history goes has always been in the form of a totalitarian system of government. A small number of wealthy and powerful elites ruling the masses in a descending hierarchy of control.