Massachusetts is also 4th in the country for states with the most people leaving to live elsewhere.
No doubt due to cost of living because Massachusetts is ridiculously expensive. The friends I have there are either leaving or totally resigned to not owning a house or ever retiring. Comparing a historically important coastal population center to a historically poor and strategically insignificant flyover state doesn't prove much.
The states with highest domestic emigration (e.g. people voting with their feet to leave) are overwhelmingly left leaning. (Except for Louisiana and Ohio)