Oh, geez, not this again 😨 In any case, that is not really the case.
Tolkien doesn't,
per se, but others do. He is hailed as a hero in
the Shire, while
Frodo is mostly ignored.
I didn't say
they alone are central, but the
Hobbits as a whole are central to the story. The story is mostly told through their perspective.
Bilbo didn't steal it. Finders keepers.
There's obviously more to the story than the route on which
the Ring is taken, so I can't really follow that logic. The book is named after
Sauron but he barely has what you'd consider dialogue. It's not the most aptly named book but the title is probably the best option.