Some people's religious beliefs include "I should kill anyone who disagrees with me." Some people act on their beliefs.
So it's the killing you object to then, and not the beliefs. Have I got that right? Good, because I agree with you completely. Religious doctrine, the xtian bible for example, is full of dangerous ideas that no sane person would believe enough to actually act on. That doesn't mean the whole religion is bad or it's followers inherently evil. Right?