I absolutely do not doubt the power of Christ, but I also have seen the evil of the Jihadists and from all the research I have done, I also know that once you are a Muslim, you are a Muslim for life. From what I have read, if you renounce Islam, you die.
There are places where and have been times when proclaiming Christ as savior was punishable by death. That time and place may not be far off, especially for those who live among murderous infidels.
Clearly you doubt the power of Christ.