It doesn't actually work like that. God proves, not man. If he opens your eyes, you believe, if not, you don't. Now you will ask why doesn't he. Because it depends on who you are. You are foreknown. That is not to say you do not have freewill....it is just hard to use. We follow who we are you see....hard to change that.
Some believer from religion A: Do you believe my religion's God A exist?
Unbeliever: I don't believe as there is no convincing evidence for me to believe it is so.
Some believer from religion A: If my God A opens your eyes, you believe, if not, you don't. Now you will ask why doesn't he. Because it depends on who you are.
Some believer from religion B: Do you believe my religion's God B exist?
Unbeliever: I don't believe as there is no convincing evidence for me to believe it is so.
Some believer from religion B: If my God B opens your eyes, you believe, if not, you don't. Now you will ask why doesn't he. Because it depends on who you are.
Some believer from religion C/D/E...etc: Do you believe my religion's God C/D/E...etc exist?
Unbeliever: I don't believe as there is no convincing evidence for me to believe it is so.
Some believer from religion C/D/E...etc: If my God C/D/E...etc opens your eyes, you believe, if not, you don't. Now you will ask why doesn't he. Because it depends on who you are.
With using the argument of "If (insert names of any religion's God) opens your eyes, you believe, if not, you don't. Now you will ask why doesn't he. Because it depends on who you are", it has been proven that every religion's God exists.
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