This is the actual point.
People write on FB, Twitter, Youtube (i.e add text/media onto their servers) and then they are surprised that those companies do whatever they want with that data.
Same with phones/tablets. I don't think that the data stored by Apple (or Google or whatever) was ever that much private. The fact that some new rules were made by politicians and the companies are eager to comply (to avoid later fines for this or other things) is just a detail.
One discussion could be about the (fake!) illusion of privacy they give for the personal data. But whether their intentions are good and bugs or evil employees ruin than, whether their intentions are bad and hide when caught behind bugs... the result is pretty much the same: there's no real privacy when data is on others' servers.
There may be one exception: the zero knowledge cloud providers. But it's their infrastructure, their software, their.. everything, and even that should be taken with a grain of salt because bugs or intended loopholes may exist.
So for privacy, your own stuff, maybe even buried in the backyard... meaning 100% old school... that's the way.
As we know: "if you want something done, do it yourself!"