Seems like you don't understand how lightning works they are closing their LSP.
For all those 'mericans that are in "panic mode" using Phoenix, here is what you should do:
1. Save you phoenix seed.
2. Uninstall from app store (because is linked to your account)
3. Install app from their github, without any fucking app store
https://github.com/ACINQ/phoenix/releases
4. Restore from seed.
Done, be happy and ignore all the shit.
If you still use an apple shit, drop it now and take an android, de-googled and do those steps.
If you still want to use your fancy apple crap... sorry but you have been warned.
Discussion
they arent doing any such thing. they are blocking ips by location. so i assume american bros would have to be on vpn always while using phoenix.
which you already should be doing 24/7, preferrably something good and paid for anonymously like mullvad or ivpn