This is exactly the same thing Walmart used to do.

They would buy supply of a product from a startup supplier, who had done all the work of sourcing and designing the production of their product, and then demand ever-declining prices of said supply until the startup supplier had no choice but to abandon ship due to lack of profitability. At which point Walmart would simply re-create the supply chain themselves.

The solution is to never deal with a corporation like Amazon or Walmart, Bezos didn't get to be a pretend-astronaut wannabe by paying his bills.