The road to hell is paved with good intentions
If you want to dramatically raise unemployment with the poor, then by all means advocate for "living wage" laws.
Did you know that some cities already have living wage laws? The resultant unemployment amongst the poor in those cities is probably publicly available on the net somewhere. New York, for instance, has areas that have living wage laws.
And here's what happens:
Let's say I have a living wage law that says that you must pay at least $10 per hour. One publicized example was a big New York low income housing construction project. Lots of rennovations and building in that area. Lots of unemployed poor people wanted to be employed helping on this project. I.e. digging, moving debris, drilling, etc. But they weren't hired. Why? Because $10 per hour is too high to take a chance on someone without any experience. So the construction companies simply brought in people from other parts of town who had experience already and already proven reliability.
So if you really are interested in increasing poverty, by all means, support "living" wage laws. I don't, btw. have a problem with minimum wage as long as the wage is low enough not to affect hiring. It's already pushing the border line now though.
I have people at our company who started at barely above minimum wage because they had no experience whatsoever. They had to learn and be trained at what they do just like everyone else at some point does. But now, a few years later they make very good wages (well above the average salary in the United States). The free market is the best way to help provide opportunity to people.