Right, so the issue isn't "landlords," per se. The issue is predatory behavior and unaffordable rents. Banning landlords might solve the predatory behavior issue (although, considering the number of scandals NYC's affordable housing lottery has had, I wouldn't be quite so sure.) But it definitely wouldn't solve the affordability crisis, because there are simply not enough units for everyone that wants one, and the prices that people think are "affordable" are hilariously low. Like, not remotely realistic virtually anywhere in the country, let alone in the unofficial capital of the world.

As for banks leeching money, I genuinely don't know what you mean. Are you saying you should be able to get a long-term loan without paying interest?