Homelessness is not a good measure of economic stability or stratification, as in many (if not most) people are homeless because they lack sufficient stability to keep things going for themselves.

I don't actually know whether we're becoming more stratified or not, as I've seen data indicating both conclusions. I know the distance between the top 5% and the bottom 5% has increased, but if the bottom 5% has more purchasing power than ever before (just the top 5% has even more) then that will make it look like the 'poor are getting poorer', when in fact, no, they're getting richer, just not as quickly as the rich. This second scenario I have no problem with... the people who take the fiscal risks to grow the economy should benefit the most when those risks pay off.