I think sometimes we let our hatred of the WTS spill over onto the unfortunate followers of the religion.
Remember, a lot of us were faithful followers of the religion, just as those who are still in. Did we "hate" children while we were JWs? Do we hate children now?
That doesn't mean that all is well within the family unit for JWs. While many are happy and seemingly well-adjusted, there are many that are in abusive situations. What is the WTS doing to protect those children? Not a lot.
That's where ex-JWs see the hypocrisy of the WTS; they see that the WTS says they love children and they print books about family life and have talks and demos at meetings and assemblies promoting happy families while all the while official church policies protect child abusers and promotes child sacrifice(blood policy).
It's the WTS who uses people of all ages to further their agenda. Children mean nothing to them, except possible adherents to the faith later. So their import is to train JW children to be JW adults. Nothing more, nothing less.
Despite all that though, the average JW parent loves their children as much as anyone else. It's just that they are unknowingly caught in a cult and are raising their kids to be cult members. It's not intentional, it just is. And the cult is set up so that to not bring reproach upon the organization, abuse of children (and adults, even) are covered over. It's the Society, not the average JW who has caused this situation to exist.