To avoid poverty in the US you need to do 3 things: finish high school, get married, and hold off having kids until married. If you manage to do those three things, your chance of living in poverty in the US is extremely low.
Transfer payments (as favored by the Zero and his commie friends) encourage people to not finish high school, not get married, but have kids. In other words, the lefties push people towards poverty by their "social" programs.
In the US today poverty is very largely due to moral failure. Prog policies encourage this failure.