the bible didnt tell people to burn witches at the stake. that was a choice that some people made due to their ingorance. the fact that the people who did it happened to be religious does not represent religion as a whole. what you are doing is called stereotyping, or forming negative associations between two things that in reality are not really linked.
but religion *is* a carrier of bad morals. the witch hunt came from christians not beeing tolerant of freethinkers and pagans. you can read in your bible that infidels should be converted, and if they refuse be stoned or burned. i'll take a few other small examples that are more up to date regarding socalled "good christian" morals: -rampant sexism -gay-bashing -intolerance however not all christians actually are sexist and homophobic, but their religion portrayed by it's text and philosophy are. these people don't follow christian morals in the stricted sense, they practise more a form of humanism, with supernatural aspects. and humanism is common sense. the morals standards of the bible is quite simply not of this day and age. it is a code intended for people living over 2000 years ago. back when keeping slaves was ok, and adultery meant that you slept with a virgin or another mans wife. not screwing around with unmarried women. as you see, morals change over time, and todays standards got very little to do with ancient religious texts.
burning witches was done by people who failed to obey the messages of teh bible, not the ones who followed it correctly. but you are so right when you talk about how following your own set of rules is the best way. but that IS religion. religion isnt necesarily a mainstream