Earlier quoted context omitted.
A lot of these issues would go away if employers weren't responsible for providing healthcare group plans. But then again Europe also has similar drives to classify Uber/Lyft drivers as full time employees so they are entitled to other benefits and employment securities (but those don't exist in a very strong form in the USA anyways).
Employers are not required to provide health plans. The issue is that Uber provides _some_ employees with health plans while keeping their lower-paid workers classified as contractors, even if they work essentially full-time.
Employers are required to provide health plans to any part or full time employees (excluding contractors) who work more than 30 hours a week.