Why Do Theists Think Inflicting Their Beliefs on Others is a Right?

These two 'parents' are suing to prevent their child from getting the hormones and therapy prescribed because of gender dysphoria.  Their reasoning: it violates their religious beliefs.  "Parents Sue to Stop Trans Son from Having Hormone Therapy for Religious Reasons".  Of course they make no mention as to if it violates their child's belief set!  Since they are resorting to a lawsuit  they obviously do not have custody, I guess telling your child he should kill himself isn't a good example of proper parenting in Ohio.  Here's a couple of quotes from the Friendly Atheist blog post:

"They also told their son he should kill himself because he’s “going to hell anyway,” which tells you everything you need to know about why they don’t deserve custody."

"Medical experts testified that the father's ongoing refusal to call the child by his chosen name and the parents' rejection of the teen's gender identity have triggered suicidal feelings."

We discussed something related a few post back ("A Disrespectful Christian Fundraiser!") about the importance of one's support group, and usually parents are a large part of that support group, especially for their children. But there are too many times when the 'support' part of the group goes off the rails and the impact can be terrible.  The child is currently in the legal custody of the county and living with maternal grandparents, who apparently are willing to violate their daughter and son-in-law's deeply held religious beliefs.  Good for them!

I have a couple of issues with this whole story.  First off, what lawyer took this case?  I guess one of those religion-before humanity types, like the ones who defended the Dover School Board.  But seriously, I have to wonder how many lawyers did the parents talk too before finding one that advised them a lawsuit was the best course of action.

Secondly, why does the parents religion give the right to load up more emotional abuse on a child?  You know I have seen parents disown their children.  I've seen and heard of young girls kicked out of their homes for out-of-wedlock pregnancies, children kicked out for falling in love with a someone outside the religion or race of the parents.  I disagree with such decisions, but a lawsuit after you have already lost custody?  That's like pouring salt on an open wound!

I feel for the child, but I have little sympathy for the parents.  You know for all the lip service about the wonderful things religious groups like to claim about themselves, their willingness to inflict their belief set on other people often is at odds with their public image.  I am all for Religious Freedom, but real religious freedom.  I have no issue with you believing something I disagree with, but religious freedom doesn't give you the right to tell me I have to conform to your beliefs!

I've said it before, children can't smoke, drink, drive, or vote until they reach what's called the 'legal age'.  They shouldn't be exposed to religion until a similar age!  That way they can make an informed decision!