This is going to end up a complete mess. Either no one will use them in which case they won't make much difference, only evil people will use them, in which case the US government will shut them down, or a lot of people will use them, in which case the US government will subvert them.
Governments (plural) will subvert them, that's what they do. No legal restriction will prevent them back from doing so. Forget about hiding from governments, that game was lost the minute you picked up a mobile phone.
The only real potential privacy benefit here is in limiting the opportunities for commercial (Google, Apple) or malicious (malware authors) entities to track and/or exploit mobile users. The problem is, of course, that all private commercial entities are inherently untrustworthy when it comes to privacy protection - companies change management or change hands (Nest anyone?) or are careless.
Really, who's the target market for this? Because it just sounds like a honeypot (like Tor) to me.