I somewhat agree. I remember hearing for example the average Californian moving to Texas was actually more conservative than the average Texan.

I will say though that it is different when the barriers to entry are smaller. There are millions of jobs in MA within commuting distance of NH. Stealing the structure of an old joke: "take a conservative from MA and move them to NH and you'll make both states more liberal."

I have met quite a few MA transplants in the liberty community but that is only relevant if there aren't a ton of people on the more authoritarian also moving. Election success is not always a good gauge for movers average political stances as the parties have shifted (I'd be voting Democrat if the Democratic candidates held the same views they did 10-15 years ago (except the against gay marriage part)).