Is it wrong to leave a group to which I belong because of a lot of negative attitudes by people in that group? Or, should I stay and help them to see that their negativism is not good for any of us?
The answer depends on your realistic assessment of your degree of danger in staying in the group. If there is no danger, then forgiving people in the group and even forgiving the group itself may help you to endure the negative attitudes. Your forgiving even might help the people to see your loving response, thus changing negative attitudes to positive. This could take time and so please be aware of that. Group norms do not usually change overnight.