Don't forget to consider that you may have had experiences with rejection and exclusion, but not everyone has found Christians to be that way, and it is actually individual people who call themselves Christians who act that way. It is contrary to Christian teachings and beliefs to exclude people, deny them needed help, or to use fear to control people. There are narrow-minded people in all walks of life, who can't conceive of any other ways than their own, and always have to be right.