Also note that killing off unsustainable businesses (by whatever definition of unsustainable, which, to a degree, we impose on the business via laws for minimum standards), it's possible for sustainable businesses to grow and prosper. The alternative is not a collapse in jobs and profit, but a different way of providing these because the void will be filled by something or someone.

That's the "...and then a miracle occurs" theory of economics.

Keep in mind that Uber solved a HUGE REAL PROBLEM that cabs didn't - Uber cheaply serves neighborhoods where it was previously near-impossible to get a cab. Increasing "minimum standards" tends to make it illegal to serve low-income communities. Just as high "minimum standards" on housing price low-income people out of the housing market, high "minimum standards" on transit jobs price low-income people out of the transit market. The market alternative here is illegal "gypsy cabs" which also didn't provide unemployment insurance or a minimum wage income.

"Increasing "minimum standards" tends to make it illegal to serve low-income communities."

That is a flat out lie. There is absolutely nothing preventing Uber from adhering to those standards while providing the same level of service they currently do.