And how do you force all consumers to buy their own privacy hardware?
Edit: sorry my question is not strictly how one person would mangle their hardware so it breaks presence detection, it’s how the tech industry would develop an at scale everyday consumer solution to this problem.
Require certain disclosures to be made in not so fine print.
Require that each privacy waiver is individually initialed, per clause, in wet ink.
This shit would end tomorrow if they had to start delivering modems with 1 inch high letters that said "THIS DEVICE WILL TRACK YOUR LOCATION WITHIN YOUR HOME AND SHARE THAT DATA WITH LAW ENFORCEMENT WITHOUT YOUR KNOWLEDGE", and the modem didn't work until you went down to the Comcast store to sign your rights away.
You don't have to force anything except taking this knowledge out of the fine print and prove that your customers are actually aware of the contractual clauses they are subject to.
The tech industry could come together and come up with a privacy standard guarantee that device manufacturers could use (Something as simple as, we will never share data with law enforcement unless legally compelled).
There's a lot of solutions, ranging from technical (firmware update) to social (pass some laws with teeth).