why are most of the people not interested in religious chat?

im a boy who have interest in talking to new friends and to strangers.

when i spoke them about religious they show their very bad reply and if i saw next time the same person avoiding me :( why this is happing??  

Some people don't know what they are talking about. Some want to avoid fighting over this topic.

There are 3 things that you never want to bring up in conversation if you don't know the person very well: sports teams, politics, and religion.

With religion, not everyone is religious for whatever reason.  Some don't believe, some do but don't want to admit it, and other just don't like talking about it.  You're better off not talking about religion unless it is the other person who brings up the topic in your conversations.