The solution is obvious and so simple.
Just use the gov't MILNET (or ARPANET2) or a wide variety of other SCI networks that the US runs.
Close down the inner-tubes and force everyone to use a non Huawai phone not made anywhere else except in Pennsylvania, Ohio, Michigan, etc. That'll take care of needs for 5G forever.
Maybe we can piggy-back on the Great Firewall of China for all our security. Altho I'm guessing Trumpf has a lucrative deal with the FSB/IRA.
Watta world we live in now. It's been fun, comrades.