Minimum-Lot-Size Regulations Limit Housing Supply in Texas
mercatus.org
mercatus.org
Smaller lots should be laid out in a more grid-like pattern with local services. Aka a town or a city.
It seems like the earlier is ideological in nature, whereas the latter is actually based on what you want reality to be like.
The short answer is because I don't like meddlers, especially not ones with legal authority.
Consider that perhaps I want to build my dream home, but my neighbors use the HOA or town council to try and keep me from doing what I want with my property because they think my preferred home style is ugly. In my mind it's the same principle as me wanting to block dense housing because I think it's ugly.