My reason for being atheist...

[Ron Obvious]

4. Agreed

I think my biggest gripe with religion is that it simply doesn't have any meaningful answers to the big questions that hold up to even the slightest scrutiny.

I find it baffling that otherwise intelligent people accept assertions as satisfactory answers.

Typical conversation:

Believer: "I know what caused the Big Bang. It was God".
Me: "No you don't. That's a content-free assertion that explains exactly nothing."
Believer: "Oh very nice, Mister Clever Dick. What do you think caused it then, eh?"
Me "I don't know. We may never know."
Believer: "How can you be content not knowing?
Me: "I don't mind not knowing. It's what keeps me searching for the answer."
Believer: "I just can't understand people like you. Wouldn't you rather know you're going to be reunited with dead loved ones after death?"
Me: "Sure. Why do you believe that's going to happen? I see no reason to believe that."
Believer: "I just know. I pity you."
Me: "I just can't understand people like you."

That's why I no longer bother discussing religion with people. I haven't heard a new argument in decades.