Almost every time something like that hits the front page, someone in the comments ends up helping resolve the issue. I don't see them as frequently as you. I am not realistically worried about losing access.

I personally only use "sign in with google" for websites where I don't care about making a new account if necessary. I don't pretend that a person can normally browse the internet without privacy leaks. It's not about caring, it's about knowing what's worth protecting and what isn't. I am okay with Google knowing I shop at Adidas.

I am just giving you another perspective and why I believe it's not necessary to completely avoid. I respect your decision for the sake of privacy.