Many many many have become muslims through violence.  We hear it all the time from immigrants:  "They were told, convert or die".  That's how .  Muhammad conducted his campaign through blood sheds, whatever you call it.  If a muslim leaves the religion or EVEN WANT TO LEAVE the religion, s/he is killed, threatened, harassed. Many people are hiding because of threats. by muslims  I dont know of any other religion that has followers so INSANELY crazy.