How anyone could argue that the benefits of the gig economy actually improves worker lives is beyond me. I tend agree that it's better for the consumer in terms of price and service, which I guess you could say reduces inequality because more consumers can afford access that used to be cost-prohibitive. But by and large, if more and more workers don't have a steady and liveable wage, health care, and retirement benefits, this leads to drastically increased inequality.
I tend to think that pointing fingers to anywhere but the tax code and resulting social services or UBI to reduce inequality is barking up the wrong tree.