"If we accept the premise that BRN is dealing in a competitive...

"If we accept the premise that BRN is dealing in a competitive market (put aside technical differences for a moment), could we not look back a hundred plus years to a fledgling car industry when the advent of the Model T Ford and it's associated manufacturing methods could have made all it's competitors fold up shop and go bust in the face of a "competitive landscape".Did all the big players in that industry disappear? A century later auto companies are still innovating and more importantly still running PROFITABLE enterprises whilst operating in a competitive landscape".

No.

What you are forgetting is that for every successful automobile company, there existed dozens of other automobile companies in which the shareholders/founders were convinced was going to be the next big thing only for the company to end up failing never to be heard of again. People are quick to forget the failures.

Below is a list of defunct automobile manufacturers of the United States. While some disappeared because they merged with another company, the majority were discontinued for reasons such as bankruptcy of the parent company or just being phased out.

https://en.wikipedia.org/wiki/List_of_defunct_automobile_manufacturers_of_the_United_States