This seems overly simplistic.

The article talks about a new statewide law, that prevents local zoning from banning duplex homes where single family homes are built.

So in the car analogy, this is like forcing all family cars to be minivans. Minivans are great, but they're clearly an added expense for a singleton or smaller or poorer family that would otherwise buy something smaller.

So, you are fairly directly creating "affordable" (relatively) housing by passing this law.

But, you seem to be turning this around and fighting against such laws. Isn't this contradictory?