On top of that, the cloud we have now is commercialized, opaque and constantly under pressure to comply with a government that many distrust, for what I would say very good reasons.

I would like to say that the cloud we have is a privacy concern because we don't know the full scope of data collected, nor what happens to it, nor do we own any of "our" data once it's in the cloud. But not every cloud would have to be that.

There's a perfect world where one wouldn't have to be paranoid about this stuff, but it's not what we have right now.