Different strokes for different folks. Motivation for me has been a combination of independence and mistrust. Every single one of the larger tech companies have shown their priority to growth above making good products and services, and not being directly user hostile. Google search is worse now than it was 10 years ago. Netflix has ads with a paid subscription, so does YouTube. Windows is absolute joke, more and more we see user hostile software. Incentives aren’t aligned at all. As people who work in software, I get not wanting to do this stuff at home as well. But honestly I’m hoping for a future where a lot of these services can legit be self hosted by technical people for their local communities. Mastodon is doing this really well IMO. Self hosted software is also getting a lot easier to manage, so I’m quite optimistic that things will keep heading this way.
Note, I’ve got all the things you mentioned down to the UPSes setup in my garage, as well as multiple levels of backups. It’s not perfect, but works for me without much time input vs utility it provides. Each to their own.
If your trust is violated, typically the worst that happens is you are fed a couple more relevant ads or your data is used for some commercial purpose that has little to no effect on your life.
Is it really worth going through so much effort to mitigate that risk?
Again, it's a value judgement, so the answer is largely personal. For me, yes. The social license we give these larger companies after all the violated trust doesn't make sense. If your local shop owner/operator that you talked to everyday had the same attitude towards your when you went shopping and exchanged pleasantries with most weeks, people would confront them about their actions, and that shop wouldn't last long. We have created the disconnect for convenience, and tried to ignore the level of control these companies have on our day to day lives if they are so inclined or instructed to change their systems.
Cloud is just someone else's computer. These systems aren't special. Yes they are impressively engineered to deal with the scale they deal with, but when systems are smaller, they can get a lot simpler. I think as an industry we have conflated distributed systems with really hard engineering problems, when it really matter at what level of abstraction the distribution happens when it comes to down stream complexity.
Note, I’ve got all the things you mentioned down to the UPSes setup in my garage, as well as multiple levels of backups. It’s not perfect, but works for me without much time input vs utility it provides. Each to their own.