From being in from the 70's until about 2007/2008, I'd say that:
1) Most of the world does not even know Jehovah's Witnesses exist and
2) Most non-witnesses who do know of them think they are just weird.
I hate to burst the bubble of the Watch Tower Society, but Jehovah's Witnesses are just a footnote in the history of man.
People who fit under the header of "Hated by the whole world" are:
1) People who hurt children or others who are unable to defend themselves
2) Nazis
Jehovah's Witnesses already define the word "hate" through teaching one must hate the world and everything in it. To them and everyone else "hate" does not describe how people view Jehovah's Witnesses.