So then you agree that if a man does not hear the message of the Gospel during his life on this earth, he is an unbeliever and is damned for all eternity without any kind of a second chance. The reason this is so is that there is no other name under Heaven, given among men whereby we must be saved. You make unwarranted extrapolations from what Scripture says. Your warning is about your opinion. Many others hold your opinion, but that does not make it right.
Many people hold all sorts of interpretations.
What I said above is correct. Just as man is destined to die once, and after that to face judgment, so Christ was sacrificed once to take away the sins of many people. Christ was sacrificed once to take away the sins of many people. By declaring the possibility to man's death on earth will not be followed by judgment, you that it is also not necessarily true that Christ was sacrificed once to take away the sins of many people. Perhaps your second chance means that Christ will have to be crucified a second time.