Well, let's see: Kill your enemies instead of forgiving them? Kill or enslave anyone who will not follow Mohammad's teachings, instead of praying for those who will not follow Christ's teachings?
Uuhhh...NO!
1 John 2:18-19
18 Children, it is the last hour. And as you have heard, "Antichrist is coming," even now many antichrists have come. We know from this that it is the last hour. 19 They went out from us, but they did not belong to us; for if they had belonged to us, they would have remained with us. However, they went out so that it might be made clear that none of them belongs to us.
Christianity was corrupted early on. Its decline in spirituality can be observed by anyone. Vain attempts at propping up the decayed cross are of no avail. Faith without works is dead. This is the crux of the matter. Why show hypocrisy to others by being vain? Christians should practice what their religion teaches. That will make its teachings clear to others beyond a shadow of doubt.
Matthew 7:3
Why do you look at the speck in your brother's eye, but don't notice the log in your own eye?
Obviously people who are hypocritical need to be reformed. The approach of Jesus did not produce a significant following among the Children of Israel, whom he considered his audience. Paul founded the religion practiced by Christians, not Jesus. The perversion of Jesus' teachings are clear. Islam definitely improves on Christianity. Hence the antagonism towards Islam.