There is only one way to heaven and it's exclusive

Exclusive

Christianity is the way to heaven. It is the only way. More specifically, the way to heaven is belief in the Son.

But to all who did receive him, who believed in his name, he gave the right to become children of God, (John 1:12)

John wrote the Book of John so that we may believe. You might be surprised to know that the word faith is not discussed in the book of John. But the word belief is all over that book.

1. The Christianity of the Bible is exclusive in that the faith will not accept sinners into it. You cannot have Jesus and your sin, too. Repentance is key, and obedience to Him who gives the spirit of repentance. Unrepentant homosexuals will not enter heaven. (1 Corinthians 6:9). Nor will idolaters, nor adulterers nor any other unrepentant sinner, no matter what their flavor of sin. Religious diversity is a lie. (Isaiah 45:5). Tolerance of sin is death. (Revelation 2:20-23).

2. Christianity is exclusive of people who come another way, except through the Son. Those who try to come in another way are a thief and a robber. (John 10:1). The following "inclusive" doctrines or religions are false.

Universalism, the belief that eventually all persons are saved, or,
Inclusivism, which assumes that all world religions point to a common truth that at the end of the day will be discovered to have been Christ. (source)

Jesus said to him, "I am the way, and the truth, and the life. No one comes to the Father except through me." (John 14:6). underline mine.

If you believe that you can reach the Father in heaven through Buddha or Ganesh or Allah or Thor or by any other god, then what Jesus said above is a lie. If Jesus lied, then that means Bible can't be trusted, because Jesus said all scripture points to Himself. (John 5:39).

Inclusive

1. Christianity is inclusive in that there exists a way to reach the Father. God's perfect fellowship, perfect harmony, and perfect delight within His three persons was all sufficient for eons. In eternity after some time had passed, (an oxymoron, I know), God created man.  However, in His timing and for His reasons, He chose to create man so as include man within His loving circle.

1a. After the Fall, man was excluded from heaven. No one could see the Father at any time. Ever. The inclusiveness of Christianity means that God sent His Son to make a way to include Humans within their intra-Trinitarian fellowship once more. Humans; men, women, old, and child, can be included in His righteousness once again.

2. Christianity is inclusive in that any person from any tribe, nation, or tongue who has believed on the Son and is continually obedient to Him is saved. People from the north, south, east, and west are going to be represented at the Marriage Supper of the Lamb. (Revelation 7:9).

Christianity includes both genders, male and female. Greek and Jew. Slave and free. Old and young. Rich or poor. (Galatians 3:8, Titus 2:1-6, James 2:3). Those who would repent and believe will be included, no matter their station in life. The only boundary to the inclusivity of Jesus is the person's response to Him.

Don't apologize that Jesus is the only way to heaven. It is truth. And if a person really, truly understood sin, they would be grateful that there exists a way to heaven at all! And how many ways do we need? We can only travel on one road at a time. I much prefer the narrow path that Jesus gave us than some broad path that man made.

Jesus Christ is the exclusive way to heaven. I'm glad, because He is perfect, He is righteous, and He is wonderful. His way never changes. We never get lost on His way, once we're found, we're found. Best of all, His way takes care of sin once and for all. No other way does that, can do that, or ever will do that.

Jesus is the only way. He is both exclusive and inclusive. If you believe this message, you're probably included. If you do not believe this message, you're excluded. You see, belief in the Son means His way, or no way. Jesus not only taught he is both inclusive and exclusive at the same time, but He is the dividing line between the two.