1 The biggest cause of social connection, home ownership, excellent public education, and neighborhood building in the history of the Modern United States was caused by the GI Bill (which last I checked was a Federal program). There was also the National Highway system instituted by Ike and let us not forget the national works programs that were also widely responsible for recovery from the Great Depression.

Do you have evidence that any of that is true?

If you map the implementation of each of those on a timeline and compare that to the huge troves of data collected by Dr. Robert Putnam,you’d find that social capital (a measure of social connectedness) decreased as Federal programs pushed each of the programs you mentioned.