Earlier quoted context omitted.
Businesses want more profit. Consumers want to pay less. Workers want to earn more. Pretty much always. This doesn't always result in an optimal outcome. Market power, externalities, information asymmetry, etc. This is why we have regulations. Forcing the society and Uber to pay for drivers to be treated as employees seems like a very reasonable outcome. If they don't like it they can hire less drivers, but the ones…
What does it mean to be "treated like an employee"? I'd like regulation to give everyone healthcare. Are non-employees not worthy?
tl;dr - "employees" enjoy a lot of benefits & protections, both legally required and provided by their employer, that non-employees (like contractors) simply don't have.