This mentality highlights the hubris of Silicon Valley. Manufacturing is not easy, and the "tech" that Tesla has isn't unique. Their main advantage is good design which is arguably easier to copy than manufacturing or software.
I live in an area with an automotive industrial base. There are hundreds of tier 1, 2 and 3 suppliers in addition to the five vehicle assembly plants within 150 miles. Each required real-estate acquisition and development entitlement and tax incentive pursuit and contract negotiations. There were roads and highway interchanges. Sewer lines were laid and power lines run and electrical substations and ordinary fire stations built.
All those suppliers built manufacturing capacity because of established relationships with the automaker. It's why there will be German owned suppliers associated with a German manufacturer and Japan owned suppliers associated with a Japanese manufacturer, etc.
Manufacturing at scale happens by outsourcing. It's not the technology that limits, it's business capacity.
> Copying manufacturing is easier than making new software.
That's a good one. Next you'll tell me supply chain and logistics is just as simple as buying SAP or even better, that SAP is for fools and you're betting off rolling your own solution.
Eh? Modern jets of all types are full of software.
An unattributed quote my father told me back in the 80s: "Software saved the aerospace industry. Every other way of adding expense to an airplane also adds weight."