Can't We All Just Get Along?

I often see bumper stickers similar to this:

I imagine that a lot of people believe that peaceful coexistence of all worldwide religions is possible.
I disagree. Not because I don't want to get along with everyone, but because I don't think it is possible.

There are a variety of reasons why I believe this to be the case, but today I would like to point out one hindrance to this ideal. There is one simple unifier of all of the above faiths, with the exception of one.

Islam denies Jesus Christ as the Son of God.
Buddhism basically doesn't regard Jesus Christ at all.
Science - Christian Science denies the deity of Jesus Christ, but I don't think this is what is implied. Many scientists today deny the deity of Christ, deny the miracles of Christ, deny the Resurrection of Christ and deny the Ascension of Christ
Judaism rejects Jesus Christ as the Messiah.
Paganism rejects the idea of a single, all-powerful God, of which Jesus Christ is a member.
Wicca denounces Jesus Christ as Son of God, Savior and Redeemer.

Christianity declares that Jesus Christ is the Son of God, condescended from heaven to earth through a virgin, lived a sinless life, performed a vast variety of miracles that were witnessed by thousands, died on a cross as the propitiation of sin, was buried in a tomb, rose three days later, appeared to hundreds of people for forty days, ascended into the clouds and will return as the triumphant King of Kings, Lord of Lords and establish His Kingdom for all eternity.

There will come a time when everyone on earth joins together in harmony.

First it will be in fear and awe:
“Look, he is coming with the clouds,” and “every eye will see him, even those who pierced him”; and all peoples on earth “will mourn because of him.” So shall it be! Amen." - Revelation 1:7

Then it will be in bowing before the God of the universe:

"Therefore God exalted him to the highest place and gave him the name that is above every name, that at the name of Jesus every knee should bow, in heaven and on earth and under the earth, and every tongue acknowledge that Jesus Christ is Lord, to the glory of God the Father." - Phillipians 2:9-11

We will coexist eventually.
It just won't be how most of the people who placed these bumper stickers on their vehicles are hoping.