What made everybody move from a corporate social media platform to another corporate social media platform instead of the fediverse?
After all, the Fediverse and Activitypub is much more mature than Bluesky and the copycat AT protocol or Threads and … whatever they use.
Most people probably don’t have a signed contract with GMail.
I haven’t checked the EULA but they likely have sole discretion around dropping / blocking email, especially any email that might be deleterious to Google Alphabet’s business.