Google is getting away with this behavior because of their monopolistic behavior. If they had competition, they would be spending billions on customer support, but because they have a monopoly, they can get away with having virtually none. This is their way of saving money and taking advantage of their monopoly. It's a shadow version of monopolistic behavior where the absence of services can be done because we have no choice. We need to politicize this issue.
Facebook is exactly the same way.
When a company reaches such dominance, and when people completely rely on a company like we all rely on Google, Facebook, et al., then we need regulations to prevent what is happening right now, which is using their monopoly to make life easier for them by not spending any money on customer support.
Would you prefer government change this balance by regulation, or let users decide what they want?
Many users choose very cheap typical service with a small but real risk of misery. Perhaps it's because they don't understand how miserable it can get. It's important that the bad experiences see public light so people's choices are informed.
Would I prefer government enforce building safety codes, or let consumers decide what they want?
Would I completely ignore the fact that Google has sucked the air out of the room with their market dominance, so hardly any competitors are left for consumers to decide between?
We can all easily name multiple email and subscription music providers.
Sure your business is destroyed, but you're right, you can easily get a new email address.
And when so many businesses are at the mercy of a few giant companies, we probably shouldn't deny them protection with the "it's a b2b matter" dismissal.