Tragic that for his trouble - and for being Anne Boleyn’s chaplain - Katherine + Henry’s daughter Mary had Cranmer burned at the stake.
I think he let his immense learning and curiosity run away with him in a very, very troubled and confusing time of English history. There was plenty of opportunism, bad motives, and just plain meanness on both sides.
And that, of course, is why Elizabeth I created the Anglican Church in the first place -- it was a political solution to a pressing (and deadly) political problem.
So long as England was of one mind religiously, it was able to survive. Now that churchgoing Anglicans are a shrinking minority and secularists and Muslims are ruling the roost, the Anglican Church has no support and it will implode. In fact, it's imploding as we watch.