Bernie attracts the college students who don't understand that money comes from somewhere besides student loans.
Also the "Live free or die" ideal attracts people who want to live free...until they get a chance to force their will on others...and this includes assorted freaks, fags and hippies who end up here. They migrate in from places like MA, NJ, CT and NY. We don't have a lot of VT transplants because VT has better welfare benefits.
Plus, Bernie is the local since he identifies as a Vermonter (despite being from NYC).