Until the emperor decrees that policies cannot be canceled due to non-payment.
Actually - the hoops to cancel the “enrollees” are nearly as heavy as kicking out a non-paying tenant in California....
Say February comes around, and an enrollee who has paid ZERO of their premium, gets seriously ill, has to go in the hospital and is treated at a cost of say - $100K. Guess who is on the hook for that... the insurance company plus the provider. They cannot deny services, and they must cover/eat that cost.
And of course, taxpayers will eat some of it too - as another thread posted in the last little bit reminds us.