Why does everyone hate Breaking Dawn?

I know!!! It's steph's book! My goodness! Every one hates it because their Breaking Dawn visions didn't come true! Where is it writen in stone that Jacob can't imprint on ANYONE besides Bella and that Bella can't have a baby? Huh? No where! I mean, as long as the vampires are around, he's not getting any older. He'll wait for Nessie to get in her mid-teens and then they'll be the perfect couple, besides Bella and Edward of course. You'd think that people would be happy that Jake finally found his true love! And he still gets to be close to Bella, just in a different way. I can see where it is strange, but it's no different than what happened earlier in the books. They both imprinted on babies. Same difference. They're mad because it happened to be Bella's baby. Now Bella and Jake really will have a brother and sister relationship, as Bella had intended to begin with. :)