Privacy was the reason it started, but I was also constantly bothered by the growing annual profits they earned from people basically giving away access to their information and livelihoods for free. I realized how valuable our information is, and the only way to break this deepening centralization and control of it, was to take it all back. Self-hosting and supporting FOSS are my methods to regain control in this war. It has become a sort of holy war for me at this point. Lol

Privacy is a concern but not the primary concern. Google is too big to be in your life. If you use Google it's in everything. If Google ever kicks you out your life is going to be very difficult while you rebuild your entire digital profile. Google's too much of a risk.

Not to mention Google is demonstrated they will kill services at the drop of a hat. So relying on them is asking for trouble.

Google heavily uses algorithms to identify accounts to delete or block or ban. And this goes back to if your entire digital life is tied to Google and they do block you, you have no recourse. Google doesn't talk to humans for reconsideration. You're just out of luck.

Google is too much of a risk for a stable life

Most seem to mention privacy. Choice as important as privacy. Do things your own way. Selecting the services you want to do common things on your device. As I went along I realised how deep google enforcement was and how hard they made choice for users. That made me want to rip off even more google from the device. I came to a state that I host every service I run my self.

Ads. I am not interested in content that paid the most for Ads. I'm looking for content that exists not to make money for the website, or the person creating that content. So given those things, Google provides negative value to me.