Because plenty of folks would have a solid down payment, or better credit score, if rent wasn't so damn high. Likewise affordable rent would make it easier for folks to move to places where they could get the type of stable job necessary for a mortgage, etc. It's not the only reason folks don't have the economic resources at hand, but it's usually the biggest expense in ones budget, no?
Greedy landlords are the problem, imho, and unfortunately every landlord except exactly one I've rented from (out of about ten in total) have been greedy assholes.
As for a fix: housing is a right, imho. I'm not an economist so anything I offer will be full of holes, but some way of securing that people have stable, safe, comfortable housing is essential. Making sure people can't exploit the need for shelter is a big component of whatever fix we need.
I had an enormous reply essentially "yes-and'ing" your reply (I agree with it, but wanted to add a "but" in a few places), but...into the ether it went. I'll listen to that podcast mini series.
One thing I wanted to add is that I grew up in Atlanta, so I agree that plenty of folks should leave NYC and LA. However, there's plenty of folks there necessary for the city to function, and I think that legislation is probably the only viable way that things will change for them, since lower-income folks are just being squeezed from all directions, given how much of a commodity real estate has gotten since the last big housing bubble burst.
Again though, I'm not an economist, so my ideas are certainly not immediately viable, and I agree there's little chance of "solving" most of this under the best of circumstances. I just think there's too much greed, especially related to housing, that can be improved. We're a rich enough nation that we can do better. Also I just wanted to be sure to give your nice comment a thoughtful reply, because the internet is too toxic in general, and we need to try to make it otherwise. Have a nice end of the year