Everything being equal,isn't what Amazon did before anyone else? Burning astonishing amount of cash and create a massive monopoly.
Prof Galloway, gave very interesting thoughts:
https://markets.businessinsider.com/news/stocks/amazon-raise...
Uber failed to create a monopoly, both due to their choice of market and poor execution.
Just because it is possible to create a monopoly, does not mean you will necessarily succeed.