I don't think that changing driers to employee status will necessarily give them health benefits. I'm not an expert, but while ERISA generally requires uniform benefit options for all employees in a similar class, the companies could chose to not schedule the drivers as full time employees, use contract labor services, raise the employee contribution to unaffordable level, etc. Many companies with large numbers of employees have large fractions of their employees without health insurance (Walmart, for instance).
