JayMan chips in (succinctly and lucidly) to a familiar topic (or, perhaps, two):
A complex story, but today's SWPLs are indeed descendants of the Puritans http://t.co/EEI7hzVeFx
— JayMan (@JayMan471) March 2, 2015
“New England was not swamped with immigrants because these people were particularly simpatico with the original Puritan settlers.”
You know, your general trope of modern SWPLs not being the descendents of the Puritans doesn’t actually hold water. A simple comparison of both genetic and self-reported ancestry (again aforementioned link, partially supplied by you) shows that Democratic voting Whites are only found in areas Puritans settled. British ancestry backs it up. See also The Myth of the Expanding Circle or You Can’t Learn How to Be an English Vegetarian | Staffan’s Personality Blog.
Now, in New England, some of that genetic British ancestry is Scottish, as opposed to English ancestry. I think we can be fairly certain the Scots aren’t the ones pushing things Left.
Sure, today’s SWPLs are heavily admixed with other groups in addition to their Puritan roots. And sure, small numbers of liberals are found everywhere. And sure, not all Puritan descendants vote Left (e.g., Mormons – but they have been specially selected). But today, the consistent Blue states are found only in areas which have Puritan (as well as Scandinavian, and possibly Quaker) descendants. It does limited (some, but limited) good to compare their attitudes 200-400 years ago with current ones – all groups have undergone considerable change during that time (the moral circle expanded to fill its genetic potential). You also can’t blame it on the Jews because A) there’s not that many of them B) their putative influence resonates with some and not others, putting us back to the original problem.