As an American I think I have a particular familiarity with fundamentalist Protestantism. There is still a strong strain of anti-papist (that's the term) sentiments in certain parts of the country.

My father's antecedents, all of them, were religious dissenters who had immigrated from Europe (mostly Britain) to escape persecution. Some of those ancestors were Huguenots. Some were Presbyterians. I don't know that much about it, except for the fact that when my father married my mother, a Catholic, the family was scandalized. They never fully accepted that union.
Anglicanism would likely be anathema to my father's family. I think I would be annoyed by this book, the way you describe it. Good job in getting across his perspective.