By false Christians I mean people who are not saved by faith in the death of Jesus Christ alone. That is the only way to be saved according to the Bible, which is where we must all get our authority on the subject from - see Acts 4:12 "And there is salvation in no one else, for there is no other name under heaven given among men by which we must be saved." (ESV) I say Catholics are in the majority not real Christians because they don't believe this. They believe that people must confess to a priest and then do a penance or punishment that he tells them to do. This is being saved by works, which is impossible - see Ephesians 2:8-9 "For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast." They also believe that they can pray to saints. While it is right to respect Christians of the past, the idea that you can pray to Mary for protection or something is on the side of idol worship (see exodus 20 the ten commandments) we should rely on God alone for such things.
It is this Catholic church that, along with the governments of the day, locked up and executed reformers, such as William Tyndale for translating the Bible so that People could see for themselves what it is all about. They persecuted the people of the Czech reformation who followed Jan Hus. he spoke out against the Idea of indulgences or being able to buy your way into heaven.
Did you know that the Bible is noticeably different to all other books. It contains a lot of prophecies and predictions of the future. For example Micah 5:2 predicts that a ruler from ancient days will be born in Bethlehem - "But you, O Bethlehem Ephrathah, who are too little to be among the clans of Judah, from you shall come forth for me one who is to be ruler in Israel, whose coming forth is from of old, from ancient days." This was predicted hundreds of years before Jesus was born. The Bible is also the best preserved Historical document from those times. It has been proved right on many details that only one living at the time could have known and the gospels were written within a generation of Jesus' death and so are considered very reliable.
The Christian message is that everyone has rebelled against God - including me - that we are all corrupt and evil. It says that we are completely helpless to avoid hell. The Bible says that Jesus Christ, who is God, became a human being and was crucified to pay the price for our rebellion.
Please remember that we are not good upstanding religious folks but fallen people who need Jesus, just as you do.