You are sorely misinformed. Pot does not kill brain cells. Nor does it hinder ambition. The Pres has admitted smoking pot, as well as many many government workers. I would say they all had to at least have a modicum of ambition.Have you not noticed. The Poor aren't interested in succeeding. Most of them have been on the Welfare dole for generations. We need to help all people who want help, but you know as well as I do not everyone wants to lead a normal life that includes a job, and responsibility. Now that we will be keeping them all hopped up on pot we can kill their brain cells, and any sense of ambition at the same time.
Alcohol is the great brain cell killer, look at how many alcoholics and weekend drunks there are in this nation, especially in positions of power.
I agree with your welfare assessment to a point though. You need to take into account all corporate welfare, pork barrel projects, slush funds, secret courts and whatever other secret ways the fed uses monies. Foreign aide is another way to cut billions from the deficit.