Yes welcome. Your dad and you seem to have a good relationship and I'm impressed that he would think about his religion and move away from it based on that reflection.
Sounds like this all happened recently. Do you still live at home? If you're as young as I think you are, never let anyone disparage your opinion on that account. All you have or ever will have is your point of view which is based on your ability to make sense of the world. What you think is what you think until you yourself have reason to think otherwise. Anyone who tries to bully you into their way of thinking based on how long they've been on the planet isn't worth listening to.
Sounds like this all happened recently. Do you still live at home? If you're as young as I think you are, never let anyone disparage your opinion on that account. All you have or ever will have is your point of view which is based on your ability to make sense of the world. What you think is what you think until you yourself have reason to think otherwise. Anyone who tries to bully you into their way of thinking based on how long they've been on the planet isn't worth listening to.