I agree that you don't really have a right to complain when willfully you join a platform you don't control.

But driving for Uber isn't entrepreneurship. You don't control your marketing, brand, you don't acquire your own customers, no control over price or business model, etc. Drivers are really just cogs in the service, provide a car, drive the routes, get paid.

I mean entrepreneurship assuming he lost $96,000 by buying a few cars and timesharing them out to other drivers... which is starting our own small business...

You can't "lose" $96,000 by being a driver...

driving for Uber is definitely entrepreneurship (source: Uh, I did Uber and Lyft for a year and a half, and did quite well, too). And it's also totally okay to complain about shitty contracting relationships. For example, the entrepreneurs of company X contracts a company Y to make some hardware, and the job is totally botched, but they can't do anything because a lawsuit is not worth the time/money.... I don't think it's unreasonable for X to bitch about Y since that provides a useful signal to others to not make the same mistake.

Not identifying with Uber drivers as entrepreneurs is a very classist attitude.