This is a non-issue. When signing up for 2FA google provides a set of backup codes and instructions on how to use them when access to your phone number is lost.

This is a non-issue. When signing up for 2FA google provides a set of backup codes and instructions on how to use them when access to your phone number is lost. I don't work for google, and recognize they have many other issues, but this person on twitter is incorrect. There are other methods in addition to backup codes. There are voice authentication and id upload. I've even had Google call me back, and I spoke to a person who manually authenticated me. This particular system isn't broken. Of course, there are many other email providers. Why would someone keep choosing the same provider, when it doesn't act in the way they expect?