In my opinion it is better not to quarrel with the family over the subject because it will not help. They will not listen to you guys and it will only validate (in their minds) the fact that you are wrong.
It is hard and as you will see it will only get worse in the immediate future. If you two always play the good guy role, they can never use anything against you and maybe one day they'll ease up a bit.
One thing to keep in mind is that their minds are washed with what they believe and it might seem evil but that is not always the case.
They think it is god's will.
Good luck and ask him to come here and browse because it is very comforting. I started coming on here a few days ago and haven't gotten off since. Good luck to you both.