The people you describe as "photographers" are a small and shrinking segment of the population. The folks you dismiss as "teenagers with their parent's credit card" are transforming the medium, but more importantly, they're buying more gear. The camera for the ages is a dead end - there's more transformation and experimentation now then ever before in photography. And amazing work is being done by the folks you dismiss as being not serious.

I'm afraid we just don't see the world the same way you do. However, the manufacturers all see it the same way, and frankly, that's what matters in the marketplace. If there was a market for the cameras you describe someone would make it.