Mass Production of Aircraft

We could have inexpensive aircraft. They do not violate the laws of
physics. However it probablly does violate laws of human nature.

You must have, first, a large potential market. Consider: Wichita.

In the benighted Kingdom of Sedgwick, no one flies. The overwhelming
vast majority of aircraft plant employees do not have a pilot's
license. They would not take flying lessons if you offered it for free.
They have no desire to fly and if you as much as made the employees
ride in one or quit many would quit and flip burgers at Spangles' for
spite. (For those who don't know Spangles is a factorial-of-cheesy fast
food outfit with turkey gyros (pronounced like the spinning wheel toy
or navaid), Western Onion burgers that taste like Amway laundry soap,
and blow-molded Elvis and MM statues that light up in the center of the
dining room.) In fact many more people in the state of Kansas with
pilot's licenses reside in Johnson County, a putridly yuppified area
outside Kansas City, MO developed to evade the Pendergasts. It has no
aviation jobs to speak of and a lower overall population than Wichita.

Expand Wichita to most of the nation. In case you haven't noticed,
most people don't want to fly.

Secondly, the existing pilot base likes its exclusivity. They will do
anything if push comes to shove to keep it their little fiefdom.
Attempts to make it more accessible will be quietly thwarted from
within if they threaten to make any serious change to this status.

Thirdly, the government wants to keep most of the population grounded
as well, for obvious reasons. Control of the population, a military
monopoly on modern aviation, there are in fact a lot of reasons.

When the population doesn't want to fly, the currently flying subset
doesn't want them flying anyway, and the government perfectly happy
they don't fly either, it's no wonder venture capital is allergic to
personal aviation.