My point is that if "Y" is not "chosen" then no matter how much God reveals himself to that person, he will not respond to the Gospel message. Am I wrong?
Not in the least. What I am saying (in 1583) is that there are many to whom God has not revealed what He has done for mankind. Don't you agree that this is so?
"My point is that if "Y" is not "chosen" then no matter how much God reveals himself to that person, he will not respond to the Gospel message. Am I wrong?"
You are wrong is somehow thinking that God will reveal Himself, sufficient for salvation, to the one who has not been elected to salvation. OrthodoxPresbyterian (you may know him as Uriel1975) makes this quite clear with his posts on Matthew 11. God knows exactly how much grace we need to respond favorably to Him. In accordance to His elective will He exercises His grace to save. God will not grant grace sufficient for salvation to those who have not been elected to salvation.