Isn't this just giving in if your only reasonable backup location is a US cloud that regularly has to negotiate with the US federal government. The only difference I see is that they have to resort to parallel construction.
my backups are not in a US Cloud.
Contacts and calendar on self hosted carddav
Pictures and files on self hosted drive.
Deltachat on mail servers (non us hosted provider) and XMPP conversation backups.
I don't backup whatsapp automatically, only do manual exports once in a while of important conversations that get copied to my self hosted server. Whatsapp pictures and vids are automatically synched with syncthing.
I host encrypted backups for another tech savy relative on a server of mine and in exchange he also host space for me on his own local backup server. We are 2000km appart so it allows us to keep a safe backup in remote location in case of fire or natural disaster without relying on the cloud.
Only thing I have missing is an automatic backup test of random files to compare checksums. I have done test backups manually but last was a bit more than a year ago so it is time to run a new one and add this automation as well.