As always people see the happy path down the middle of the forest, not the creatures waiting to leap out and eat them two steps down the line.
I find the easiest way to make these people think, is to attack it from a money angle. Disregard all the ideological, practical, security, surveillance related issues. Ask them how would they feel if from tomorrow, they would need to shell out money, a $100 equivalent of their local currency when buying any kind of computer (ipads, mobile phones, pcs, macs) for a stamp of approval, and then having to fork over $10 every month for renewing an "attestation license".
You are not forced to get this stamp. There will be some websites restricted that you can't access, but your computer will keep working fine. First it will be your bank website, then streaming sites, then food ordering services, and so on, until eventually all the major services will be walled off until you pay.
Because that's what will happen (among other things). All this infrastructure will need setup, maintenance, and it will not be free, and you can bet your ass that FAANG (or whoever will be running the attestation services) will be charging whoever is using their services, and they will be forwarding the bill to you, the end user.