You need to get into the 21st century. Your way of thinking is why businesses fail. The Python is a machine and all machines can be mass produced if there is a market to support that. It is ridiculous to suggest that all of the internal parts have to be hand-made for a specific gun.
Some things cannot be mass produced the way you describe. Otherwise we would see that on the market. Why don't we see Python quality firearms currently produced? Because the guns were labor intensive and would cost too much to make.
There is a market for them, but they would cost too much to produce to be profitable. You don't know what you're talking about.
I do see where you spoke of 'market to support that', but the reality is that's just sophistry.
Colt's adventure into mass produced components designed to simulate the hand fitted assemblies of the craftsman's age Pythons was evident in the lower cost King Cobra line. They weren't very well received and compared to the more budget-conscious offerings from Ruger the Colt King Cobra was regarded as charging for the Colt brand name versus true quality.
What causes businesses to fail in the firearms market is when they don't stay in their lane, sticking to what they do best.
If you're looking for absolute superior quality in a mass produced firearm, go look at Heckler & Koch. Next, look at their price tags. Finally, go look at their recent publicized financial problems.