I don't know if this is your theory, if you just subscribe to it, or are just sharing something different, but wow, what a load of bunk.
It's nothing more than a longwinded way to protect the feelings of the privileged and avoid naming the actual cause of the problem - capitalism.
There is no mystery, there is no confusion ,there are only people who benefit from it who want to find other things to blame so that they don't have to act against (what they think are) their own interests.
Yes, division is bad, but it isn't those who are divided who caused it, nor should they be framed as "separatists" or whatever when they (we) seek our own segregated spaces for our own safety in a world that has made us a target anywhere outside of those spaces.
I get that it's hard to face reality, but surely it's harder to make up all these excuses and do all the mental gymnastics to avoid facing it?