New Englanders were not the only people fighting that war, not by a long shot.
Looking at just the sheer number of battles, the Revolution was fought predominantly in the Carolinas, with New Jersey being the most hotly contested northern state. That doesn’t delve into strategic importance or number of casualties, but I suspect the picture wouldn’t change all that much due to those considerations.
I’ve often thought that our nation’s founding became politicized due to the Civil War, with first settlement moving to Plymouth from Jamestown and the Revolution becoming more of a New England affair as far as the history books indicated, in the aftermath of that conflict. The victors get to write the history books.
In light of that historical truism, it seems as if we’ve lost another war that most didn’t even understand was being fought, if modern history books are any indication. It was apparently a very racial conflict, too.