My point is that greed always exists with or without capitalism. Many attempts over the last 150 years have been made under the assumption that "capitalism" is

My point is that greed always exists with or without capitalism. Many attempts over the last 150 years have been made under the assumption that "capitalism" is the problem and they all failed because "greed" is the problem. If you remove "capitalism" then people will simply find a new means to satisfy their "greed" because people are rather clever actually.