“Mormon doctrines promote sex-abuse! The whole underlying notion is that Mormons are expected to provide more earthly bodies for waiting spirits in a lower heaven, to enable them to earn a higher celestial state.”
kind OF.  SEMI-sorta.  
Mormons have three heavens.  Everyone goes to 1st heaven, which is actually Hell.  But it’s SO MUCH BETTER than life on Earth, you’d think you were in paradise.
Christains all go to the 2nd Heaven.  It’s so much better than 1st Heaven you’d think you were in paradise.  And by comparison, you’d think 1st Heaven was Hell!
Third Heaven is for Mormons.  Yadda, yadda, paradise, so much betterer…
Thing is, the church promises that you can advance.  
Your descendents worship Jesus through you which gives you power in the afterlife.  And Mormons on Earth can get dead ancestors baptized as Mormons even if they never heard of it.  
Eventually, spirits get enough power to create their own world and be a god to it.
“This heresy is as bizarre as it is unbiblical. So if a little girl is taught from the time she's born that heaven is counting on her to be sexual active... well, you get the picture.”
No, David.  They don’t say ‘sexually active’ they say ‘a good wife and mother.’  Much the way you talk about your expectations of women.
“One of the dirty little secrets that the newsmedia doesn't tell the public in Mormon sex abuse cases, is that the molested children are often happy to be victimized, because they've been brainwashed to think they are serving the Mormon god.”
Yes, the sepratist groups teach this, much the way branch Davidians did and any other Christain schisms where the leader thinks he’s Jesus.  Big whoop.
“Literally, many Mormon children have been brainwashed by their Mormon parents to look forward to being sexually molested.”
Not because of Mormon Doctrine, though, you illiterate bigog.  Because of sepratists crazypants practices.