Great thoughts, Maha, even given how quickly you wrote this while attending to family and faith things, all in the middle of the night!

I do wonder if exclude or exclusion (exclusive?) are the best terms for what you are considering here. At least when I hear those terms, they are used when there is a (conscious) effort to keep the us from being mixed up with the them. I do not think those issues of power and status quo and separation are what you mean . . . though I am at a loss for what may be a more “objective” term that somehow does not carry the same negative baggage that comes when some people are kept out or away on purpose.