Amen, this whole "if it's not 100% secure why bother" argument is annoying, we can still make it hard for them.
We can, and we definitely should.
It makes it easier for them.
what does? housing mail outside the US? outside of their partner companies or previously breached companies (in the case of google).
I mean, if you have a remote server- it's lawful for them to snoop (by their own law), but it certainly makes it harder, to gain access and maintain access- as these systems may be wildly different and hosts will be varying degrees of paranoid.
If I were to live in the US, I would know when my server went missing. With Google or other cloud-providers they can do it behind your back.
> If it's located outside the US it's a valid target for all the TLAs.
And then can't seize it. It's physically secure. It may not be bullet-proof security-wise (what is?) but they can't rubber-stamp their way into it.
And for some people that's quite an important aspect.