I had several people try to convince me that Wiz was an Indigo Child. The whole thing made me gag. My biggest problem was that Wiz didn't need ANY more reasons to think he was better than everyone else, he had a super huge helping of that already. One idiot relative went so far as to tell WIZ that he was Indigo and it meant he was special and a new breed of human and we should all follow his lead and not 'stifle' him or insist he follow our rules - we should revere him and follow HIS rules.
Yeah, that relative got about the biggest chewing out that I ever gave, even if I hadn't ever chewed her out before. I actually forced her to tell Wiz that she was very wrong to say that and that Indigo was just an excuse for children to be rude and badly behaved. It was not a good time in our relationship, let me tell you. The threat of cutting off her contact with Wiz was not made lightly, but her Indigo nonsense made not only my life and my hubby and other kids' lives more difficult, it made Wiz' life at school and other places more difficult. No one is allowed to do that to my kids and stay in contact with them with-o working to make it better.
I have zero patience for this. There is no biological basis to claim an ADHD or special needs child is a new type of human. They are homo sapiens sapiens just like the rest of us, period. Most of our kids with problems don't need ANY more encouragement to feel they are better than us and are entitled to have and do and say whatever they want. Not only is it permission for the child to be badly behaved, it gives the parent a way to abdicate parenting that child. Mom can say, "Well, I can't do anything about Jonny not following the rules. He is an Indigo and you should follow his rules." I actually have heard parents tell a soccer coach and some teachers this when spoken to about their children's behavior. I always wondered what should happen if 2 or 3 Indigos were in the same group with different ideas about what to do - which one do you follow if they are all so special? Of course no one wants to discuss that. Indigos shouldn't have to compromise, after all!
SuZir's reaction may be best. I am lucky that it was pretty easy to get Wiz to not buy into this back when it was introduced to him.
Why does your son want to make you atheist like him? Mostly to tear down something important to you that has rules for behavior that are not convenient to him. I highly doubt it is philosophical in reasoning. It sounds like it is a way to be different or separate from the family and to create more justifications for his behaviors. My own brother used to claim to be atheist all the time. It was NOT because he had any strong belief in a lack of a God, it was mostly to upset my folks. Poor guy, it didn't work because my folks insisted on educating us in a religion until we were old enough to think things through for ourselves, and the they insisted on allowing us to make our own religious choices as to beliefs as long as we didn't hurt anyone and respected the beliefs of others. He wanted a hot button to push to upset my parents and I and tried very very very hard to make religion that button. It drove him completely bonkers that he failed completely. Then he turned to other religions and tried to upset us by claiming to believe in them. He tried to be atheist real hard, but still had to attend his catholic school even when I went to a public school. He wasn't in the school because he was Catholic. He was there because it was strict and he was on the way to juvenile hall.
So he then was Buddhist. Around that time a cousin had a Buddhist wedding. It was beautiful and amazing and did not upset anyone in the family. So being Buddhist was out. On and on, one after another, he desperately tried to make SOMEONE in the family upset about religion. Again and again, he failed.
Now he doesn't bring it up. He tried to insist his daughter go to other religion's services but that fizzled out because he doesn't like to go to group functions. He is a true individual, after all. Just ask him.
I think your son may be trying to do what my bro tried for so long to accomplish. He wants to create drama and a reason to do what he wants. If he can get you to believe in atheism, he will feel he has succeeded in taking something you rely on away from you. He will then see you as vulnerable and malleable, able to be pushed into whatever he wants to push you into.