It's a switch away. I'd rather not share the same ISP as my family photos storage provider or health records (Verily) vendor.

I am actively trying to do de-Google my life. It's surprisingly difficult.

How are you sure of that? Is there actually a way to be sure of that?

T-Mobile does, and they run the physical network the Fi traffic runs over, which makes this whole "Google is/isn't as bad as T-Mobile on privacy" debate a red herring.

Doesn't mean they don't pay for that same data.