Every society has both a desire and a responsibility to raise their children as they see fit. So do most parents. The question is what to do when these clash. When does society have the need or the right to "take over" from the parents in this regard? Our society as a whole is becoming increasing tolerant of alternative lifestyles while some parents are becoming increasingly intolerant of them.
I don’t see the intolerance as increasing, as society changes, there has always been parts of society who objected to such changes.
This will inevitably lead to problems as every society needs to develop and maintain a cohesive set of ideological parameters that everyone can follow.
We have those, they are called “laws”. In this case, the objections are not about laws, but morality.
Because parents can so damage their children's psyche that by the time they are "older" it's too late, and they are beyond help or repair.
I disagree. The older a child gets, the less influence parents have over them, and they get influence from other sources. By the time the child becomes an adult, society has far more influence over them than their parents.
When you look at women's rights, immigrants rights, minority rights, gay rights, etc. all of these rights were accomplished without appealing directly to children. If the parents are wrong, allow the children to find out on their own.