Why is Christianity so Unpopular?

God.  Jesus.  The Bible.  Grace.  Faith.  These aren't bad things if you ask most people.  What IS bad, though, is the Christian belief that salvation consists ONLY in these things, and that salvation doesn't exist at all without these things.  It is the exclusivity of Christianity that makes it so unpopular.  It was the exclusivity of Christianity that got the reformers in such trouble 500 years ago.  The powerful Roman church didn't mind talk of God, Jesus, the Bible, grace or faith, but when the reformers insisted that salvation wasn't found in anything else-not tradition or works or liturgy-that's when things got heated.  It is no different today.  Most Americans are fine with God and Jesus, the Bible, grace and faith, but when Christians teach and insist that Christianity cannot be found outside of those things, and that where those things are absent, Christianity is absent, that is when Christianity becomes very unpopular and Christians find themselves in a minority.  The Bible says in Acts 4:12,  "Salvation is found in no one else, for there is no other name under heaven given to men by which we must be saved."  Ephesians 2:8-9 says this:  "For it is by grace you have been saved, through faith-and this not from yourselves, it is the gift of God-not by works, so that no one can boast."