I thought we were talking about a solution that the tech industry could implement and deploy en masse to users, because it’s just, like TLS and browser standards. That’s usually what is being discussed when these give everyone privacy topics come up. The people that care enough to ground their antenna are already using their own hardware. And the ISP will deter hardware modification by charging you for damaged leased hardware. Or you’ll be in an arms race where the ISP’s firmware will flag the unit as defective because the radio doesn't work and cut off access till you fix it.

I guess you could put it in a cage. Maybe I should go door to door selling privacy cages. Do people pay for tinfoil hats these days?