I'm not talking about Christians in particular. I'm talking about claims theists make. And theists who "experience" God/gods claim very different things about God/gods.
The argument "a lot of people believe X so it's true" is a
fallacy. It is the argument you have been making. You've said that because many theists "experience" a god, it is evidence for the existence of god.
I am saying that if these experiences are actually attributed to an encounter with god, they should all be consistent. They are not. So I think it is more likely these experiences are caused by hallucinations, dreams, misremembrance, or other tricks of the mind. Mass misremembrances happen all the time. It's called The Mandela Effect.
No. Even an honest, intelligent, upstanding person can fall victim to a hallucination or misremembrance. Mistakes happen, our brains are imperfect. Remember The Mandela Effect?
Atheism is not a belief, it is a lack of belief. Similarly, not collecting stamps is not a hobby, it is a lack of a hobby.