You have maligned and wrongly-caricatured a strong, godly people, who, admittedly, after the first generation, began to lose their stuff, but who have profoundly affected our country.
Nonetheless, the Puritan tradition founded Harvard (once a great Christian institution), produced Jonathan Edwards (America's single greatest home-grown philosopher and preacher who was instrumental in The Great Awakening.
Let me STRONGLY encourage you to read some of the Puritan's writings in Divinity -- on BOTH sides of the Atlantic. (Men like John Gill, John Owen, and John Bunyan.)
These men were spiritual giants, the likes of which simply don't exist anymore -- in ANY denomination.
Did you not read ANYWHERE that Bunyan's *Pilgrim's Progress* is historically second in sales to only one other book (the Bible itself)?
I'd give you a B-minus at best. You got the trees, but missed the forest. Need to dig a little deeper than the first liberal historian's critique of the Puritan ethic.
Liberals HATE the Puritans and devote themselves to making the rest of us hate them. (I know: I used to hate them, too, when I was your age. We are PROGRAMMED to hate them, don't you see? Don't fall for it.)
Finally, it is not good history to interpret a centuries-old society by modern mores. Even the conformist Anglicans of the day (who were the opponents of the Puritans in England) would be seen as intolerant and unenlightened by modern standards.
You may never like the Puritans, but, at least try to gain (and portray) a balanced view of them. They have MANY admirers today.