It probably started out for them as an inferiority complex. We never really needed their old hooded men to tell us about the beauty of the world, and the sanctity of any life. It may then have grown into severe dislike and distrust, we always seemed to know more than they did. On top of that we refused to join in and forget who and what we are. It does not surprise me that so many did join this group.
Assimilation seems much less scary and a lot safer than staying apart and remaining different.
Although I am prepared to live and live and let live, I don't think their belief system would allow them to. My comfort for now is knowing that I can still close the door if necessary. That is too scary to even consider. I even have a hard time letting the few people that have visited before come in too often. I applaud those who are not afraid of showing themselves.