You understand that the better version of your argument is better regulation, not less regulation, right? That's really the core of my point. Plus, the items you mentioned still have other benefits that need to be weighed against (and lack of contractors isn't even a regulation, it's a possible outcome of some other regulation, which is probably the licensing, but that is even closer to the whole FDA argument I made, and let's be honest, you needed more items for your list).

Edit: and it being a seller's market is absolutely caused by demand for purchasing, so in the end it's still landlords fault. They're converting too many non-rentals to rentals. They're buying up houses at high costs because it becomes more affordable with more units, therefore driving pricing. It truly is the biggest influence in purchase price. Regulating that would absolutely have a far better effect than deregulating other areas (which still sounds more like they just need better regulation).