> One cannot live without a utility...
If my water got shut off, my life would go on pretty normally - drinking water is cheap in stores, bars are required to provide it free of charge and I can shower at a friend's place or something. If I lost my email account however, I'd have months of work ahead of me just to restore my digital life to its previous state and my livelihood would be at risk. All bills go to my email so I couldn't pay for the services I and my business need, business partners wouldn't be able to reach me, neither would my customers... In fact, I can't really think of any other single thing that would cause more problems if lost than my email account(s).
If you get banned from using your Gmail, you can't just switch to Hotmail.
Using your car analogy: If Honda provides me a car for free, I don't expect them to allow me to do whatever I want with the car that I don't own.
As for the stuff in the car, it's a poor analogy. The stuff in your Gmail account is easy to duplicate, unlike physical stuff, and it's your responsibility to back it up.
As you can guess, I don't use free email services, and I don't rely on the mail always being in the hands of a provider - I always have my own copy via IMAP. This was the normal way to do email, and the barrier to entry is low - most people doing this in those days were not tech folks.
It's just silly to demand that a company spend money to provide something to you for free, and then demand they be treated as a utility. Especially where plenty of alternatives exist.
The big players in search, email, social have a larger market share than the big car producers. There's no 'Google' or 'Facebook' of cars.