diggy, as for Muslims now, the answer is simple, most of the Muslim population is not following the teachings of Islam. Once you deviate from the core teaching, you invite yourself to be taken over by evil. This state was actually prophecised by Prophet Muhammad (phuh) in a Hadith. To paraphrase, it reads, "The day will come when you (Muslims) will be like the foam of the sea (numerous but very weak)." Only a very few Muslims are going back to the core teachings and those are the true Muslims. It's like anything and anyone else, if they claim something, watch their behavior, then see if they're truly what they say they are or if they're just talking.
"Die before you die."-Prophet Muhammad (Pbuh)