Wrong. That's actually the only thing that matters when we're discussing the psychology of religion.
What I mean is that regardless of the origin of the belief, or the psychological reasons, holding the belief makes you a Christian if the propositional content of the belief is that there if a God who is 3 in 1, and so on
No, what matters is the reason or the need behind the belief. Reasons for beliefs are more important than beliefs themselves. Let's say person A believes killing people is wrong and person B believes killing people is wrong. Are they automatically one and the same or one needs to look into the reasons for why they hold such beliefs? What if the only reason person A believes killing to be wrong is the fear of god or some other external authority, whereas person B holds human life sacred in a humanistic, secular sense? Are those two beliefs the same? No, they aren't, despite appearing that way at first glance.
I agree that reasons for beliefs are important. Some times justification for a belief is required, or a reliable process that is truth conducive. But what I am referring to is that the propositional content of the belief, regardless of its origin, makes you a Christian, not the reasons for the belief. You can still be a Christian even though you have no justification or reliable process through which you formed the belief.
In your example A and B both hold a belief with the same propositional content, viz, that killing people is wrong. The proposition "it is wrong to kill people" is the same no matter how one arrives to it. Suppose A and B are at the airport, they travel separately and they want to go to their hotel, both stay at the same hotel. A takes train which takes him the long way, and then a bus, which drops him 100 meters from the hotel and he walk to the hotel. B takes taxi which takes him through the city centre, he also gets to the same hotel as A but much quicker. Both A and B got to the same hotel but through different routs and means. The proposition "it is wrong to kill people" will always be the same in every instance of it, no matter how you get to it, just like the hotel will be the same no matter what rout or means you take to get there.
Lol, no. I never said that. You're not listening at all.
You say two people are of the same type if and only if they believe one and the same thing, and I say two people are of the same type if the underlying need or reason for their beliefs is the same while the rest is nothing but makeup and is liable to change. You are being extremely superficial if you think beliefs in themselves are the end.
I didn't say people are the same type if they believe the same thing. No two people can be identical in their metal content/attitudes.
You think that 2 people are of the same type (what do you mean same type?) if they happen to have arrived to their different beliefs through the same underlying needs or reasons?