I agree with your statement, but I'd like to get it a bit further. Why run any closed-sourced software from (or have servers in) countries that can request you data without a fair trial (e.g. secret courts). I feel just as uncomfortable about national security letters and the NSA/CIA as the MSS, this from someone who is not living in China or the US.
I do think this shows the perks of open source software and being able to self-host or federated solutions.
Because it is much easier. I am already spending plenty of time on badgering local government about green spaces and bicycle infrastructure, massive amount of time on OpenStreetMap - and my time is limited.
I have no time to learn how to and run and maintain my own mail server.
I do think this shows the perks of open source software and being able to self-host or federated solutions.