

There is – as far as I’m aware – no good data to suggest any of this is true. The severity of punishment has no correlative link let alone causative link to crime rate. As for “politeness” I don’t even know how to tackle this, I know Japan and Canada are considered “polite” by public opinion and both have stricter gun regulation than US. And as for the great equalizer claim while I can see that theoretically it could be an equalizer of force that would only be the case if the “weak” were as likely to have a gun as the “strong”. If we simply compare women to men – since women are often physically weaker than men – we see the gun ownership rates skew heavily towards men. So if anything in that context not only is it not equalizing it is further dividing the gap between the weak and the strong in this context.
I would make the argument that it could actually be a means to align with affordable housing (although that would likely be very difficult in this current housing market). Managing a property is a service, you have to manage vacancies, repairs, rent collection, etc.
If you don’t offload this to a management company and do it all yourself it is technically feasible to make a profit from the labor of managing the property even when charging below market rate for the property (difficult to do right now, but after owning the property for a period of time definitely possible).
If you were to do this you would be directly combatting the affordable housing problem by introducing competition at a lower price (it would be a drop in the ocean, but it would be fighting for affordable housing).