>You mean, the market that is crumbling fast because most people are not professional photographers?

That's the whole point though. The market is crumbling because it no longer exists. Professional photographer are few and far between and they are the only ones that need the features provided by a professional camera.

Compare pictures take on an iPhone to those take on a top of the line F4 from thirty years ago, the iPhone pictures are _much_ better.

The only reason to have a professional camera is to be in full control of all settings, which would make your proposed DSLR without those controls purely a vanity device/big heavy smartphone minus the phone for people who want to show off how much money they have.

While they's always a market for people to show off their wealth, it won't be a useful camera.