We really need to just fix the laws.
This. There are something like 150 million Americans with a Google account, and these days it is more important than a phone number to have a working email.
Email is a utility. Email companies should be heavily regulated and controlled like phone or other utility companies.
Someone claiming to work for the US Digital Services replied to me here years ago that this was being worked on in relation to the easily compromised SSN but I'd say all bets are off on a consumer friendly government service like that now.
The only people who seem to get un-suspended are the ones who can generate news media outrage or who can call their friend who is a director/exec at the company. (Obviously this intuition is flawed, but it’s hurting the reputations of these SaaS providers.)
It's not hurting them enough. Hence the regulation is needed.