One side wants to help people, the other side wants to punish people. It is very clear from your post history that you are the "I got mine fuck you" breed of conservatism that has corrupted the US for the past 40 years. You are the enemy.
Yes, please list the ways the left has helped improve the quality of living for the US. I'd prefer the list only be things that occurred this century. Lip service doesn't count either. Sanders is the only one I can think of that's done anything, and The Party shut him out twice.