There's a huuuuge difference between escaping poverty and avoiding poverty.
70% of Americans who are born poor will die poor. I can't find solid number for how many non-poor Americans will become poor, but given that the poverty rate is about 15%, and 70% of that 15% was born into poverty, we can straightforwardly estimate that about 6% of non-poor Americans become poor.
In other words, the chances of any random poor American escaping poverty are about 30%, while the chances of any random non-poor American avoiding poverty are about 94%.
With 94% of non-poor Americans avoiding poverty, saying that 98% of Americans who do X, Y, and Z escape or avoid poverty is not terribly compelling.
I'm sure that obtaining and maintaining full-time employment really helps people escape from poverty. My point is just that this is not really useful to say, because it's fairly obvious, and because the difficult part is having jobs for poor people to work. Saying that we should help poor people escape poverty by ensuring they can work full-time jobs is like saying we should help put people on the moon by giving them altitude. Yes, it's true, but not really helpful advice.
So much social policy already revolves around jobs that I just don't see why you act like this is some revolutionary idea. The question is not whether we should help poor people work. The question is how.