Earlier quoted context omitted.
> They've essentially gotten roped into maintaining a huge chunk of internet infrastructure, for free. If they ever shut it down the whole world would end up rioting because it's so widely used. Not even remotely true. They regularly shut down products and services with impunity. If Gmail cost more than the data they directly or indirectly mine and sell from their users, Gmail wouldn't exist either.
The stuff they've shut down has been nowhere near as important as Gmail.
If that ceases to be true, goodbye (free) gmail.