Talking Trash or the word of God?

There are times in history where people will avoid others for being crazy, while other times people will cut others out of thier lives just becuase of thier faith. It happens all over the world, even to christians. Why is that, if we have that special gift of free will why not use it for purpose better than casting the stones. I know i personally beleave that anybody and everybody can teach each other something in life. But instead if a buddist teaches somthing its blasphomy (excuse the spelling) whether or not it agrees with the christian writings. In the bible god has chosen folks from all corners the strange world. I never understood why we couldn't listen and learn, maybe one day we shall. I don't know, just another thought.