Union employees have negotiated healthcare into long-term contracts, making it hard for those employers to switch. (Feel free to read up on so-called "Cadillac

Union employees have negotiated healthcare into long-term contracts, making it hard for those employers to switch. (Feel free to read up on so-called "Cadillac plans" during the original ACA negotiations for more details). The size of this market makes employers exiting a non-starter IMO. Any org that wants to exit will see a huge resistance to this change even if they can showcase all the common benefits.