He told nicodemus HOW to be born again, when Nicodemus could not understand and asked how these things are so.
As moses lifted the serpent, so to must the son of man be lifted up that whoever believes in him will not perish but have eternal life. For God so loved the WORLD that he gave his only begotten SON that WHOEVER believes in him, will not perish but has eternal life. For God did not send His Son into the world to condemn the world, but that the world through Him might be saved. “He who believes in Him is not condemned; but he who does not believe is condemned already, because he has not believed in the name of the only begotten Son of God.
You can spin it however you want, but this is how you are born again.
Why would he say MIGHT be saved if people CANT be saved.
Again, You can not be made alive while your under the penalty of sin.. That one fact destroys fatalism.. They can not get around that fact without destroying Gods perfect justice.
you missed a great portion of Scripture where Christ explains to Nicodemus who that this rebirth is spiritual and outside of the control of man.
Joh 3:8 The wind blows where it wishes, and you hear the sound of it, but cannot tell where it comes from and where it goes. So is everyone who is born of the Spirit."
Nicodemus was the head teacher of Israel but was blinded to this simple truth which the prophet Ezekiel spoke of below, as was the whole nation who were handed over, as prophesied to stumble over this simple truth as you currently also are.
Eze_36:26 I will give you a new heart and put a new spirit within you; I will take the heart of stone out of your flesh and give you a heart of flesh.
Eze_36:27 I will put My Spirit within you and cause you to walk in My statutes, and you will keep My judgments and do them.
Christ told His disciples that salvation was impossible for men but you seem to insist that Christ was wrong.
Mar 10:26 And they were greatly astonished, saying among themselves, "Who then can be saved?"
Mar 10:27 But Jesus looked at them and said, "With men it is impossible, but not with God; for with God all things are possible."
The repentance and faith which God justly commands from all people is only made possible by grace which grants it is a gift of God to His people.