When Jesus said, "I am the way and the truth and the life. No one comes to the Father except through Me" (Jn. 14:6), He was basically teaching what He had already said in Jn. 3:14-18, "Just as Moses lifted up the snake in the desert, so the Son of Man must be lifted up, 15 that everyone who believes in him may have eternal life.16 "For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. 17 For God did not send his Son into the world to condemn the world, but to save the world through him. 18 Whoever believes in him is not condemned, but whoever does not believe stands condemned already because he has not believed in the name of God's one and only Son."
That is, that for a person to not be condemned to hell, one has to believe that Jesus is God's eternal Son, that He died on the cross to pay for their sins, and that they turn from their sinful living and follow Jesus' teachings. For as Jesus said, those who believe this will not be condemned to hell, but those who do not believe will be condemned i.e. perish forever in hell. Therefore, not everyone will be going to heaven when they die, and not everyone will end up in heaven at the end of the world. But only those who believe in Jesus. For God sets the standard or rules, not us. And so if men and women cannot except God's way then that is sad, but too bad. Because God is God and He will have the last say. Why do you think Jesus said in Matt. 25:31-46? "When the Son of Man comes in his glory, and all the angels with him, he will sit on his throne in heavenly glory. 32 All the nations will be gathered before him, and he will separate the people one from another as a shepherd separates the sheep from the goats. 33 He will put the sheep on his right and the goats on his left. 34 "Then the King will say to those on his right, `Come, you who are blessed by my Father; take your inheritance, the kingdom prepared for you since the creation of the world. 35 For I was hungry and you gave me something to eat, I was thirsty and you gave me something to drink, I was a stranger and you invited me in, 36 I needed clothes and you clothed me, I was sick and you looked after me, I was in prison and you came to visit me.' 37 "Then the righteous will answer him, `Lord, when did we see you hungry and feed you, or thirsty and give you something to drink? 38 When did we see you a stranger and invite you in, or needing clothes and clothe you? 39 When did we see you sick or in prison and go to visit you?' 40 "The King will reply, `I tell you the truth, whatever you did for one of the least of these brothers of mine, you did for me.' 41 "Then he will say to those on his left, `Depart from me, you who are cursed, into the eternal fire prepared for the devil and his angels. 42 For I was hungry and you gave me nothing to eat, I was thirsty and you gave me nothing to drink, 43 I was a stranger and you did not invite me in, I needed clothes and you did not clothe me, I was sick and in prison and you did not look after me.' 44 "They also will answer, `Lord, when did we see you hungry or thirsty or a stranger or needing clothes or sick or in prison, and did not help you?' 45 "He will reply, `I tell you the truth, whatever you did not do for one of the least of these, you did not do for me.' 46 "Then they will go away to eternal punishment, but the righteous to eternal life."