This 100% has nothing to do with it. Screws aren’t even the easy, cheap, or fast option for construction. Everyone defaults to nails anyway because they’re the cheap, fast, easy, and correct option for framing.
Building a code-compliant small structure is basically trivial these days. The information is readily available from so many different sources that you have to ignore them all and choose to improvise your own thing, such as using screws instead of framing nails in a framing nailer, to get things done.
Many of the code violations in this build are just common sense problems, like putting high voltage wiring in a pipe with low-voltage wiring.
> People in the know are often comfortably well off. They have no problem with saying "Well, pay the few extra bucks to do it right." and the result is some people are sleeping in the streets and it falls on deaf ears when you try to draw those connections.
Construction workers are well-versed in building to code. It’s definitely not causing housing shortages or even remotely related to it. Code isn’t causing houses to not be built, and abolishing building code wouldn’t increase the rate of construction.
Zoning, on the other hand, is a huge problem.