A service economy with proper living wages is absolutely possible. I’m not a fan of such an economy because any country, especially one as large as the U.S., has no reason to be a single sector economy and plus as we saw during the pandemic and are seeing in the Ukraine war, a lack of domestic manufacturing capabilities is a significant strategic threat.
However, the gig economy model is a choice. A choice that can be fixed by simply reclassifying these workers as employees. The gig economy is little more than a way to get around employee protections, and the sooner we face that obvious reality the better.