What I think you overlook is the very fact that being able to live where one wants can--for SOME people--be classified as a 'social experiment' clearly speaks to the fact that prejudices HAVE taken precedence over what a just society should regard as a natural right: specifically, living and working where you want to, regardless of your color, religion and/or national origin.

That was the case when I was a kid.  And it clearly is the case in Twin Falls and a lot of other places in this country now.  I can't stop to grab a bite when traveling with my family in Harrison, AR or Sedalia, MO, despite having relatives in both states.  Not safely, because those towns are hotbeds of Klan sentiment and activity.  If that's not an example of prejudice taking precedence, I'd like to know what is.  These are by no means the only examples I could have cited from my own personal experiences.

"If there are any" (prejudices) is a question I've never had to ask.  I already know the answer to that.