apparently you do not understand the Church and Her teachings. What to do in particular situations changes with the times but the underlying morality does not.
Let’s look at your example of burning heretics. In a thoroughly Catholic society, a heretic–and the heretics the secular authorities burned were those who tried to convert othera to their thinking–were dangerous not only to the eternal fate of souls, making this an important issue, but to the social order, hence the involvement of the secular authorities.
However, when Protestantism swept through Christendom, many of the secular rulers converted as well, and we saw the fruits of heresy which the Church and secular authorities had tried to avoid, such as the very destructive 30 Years’ War.
The Church has not changed her stance on heresy at all, and is still correct; however, we are no longer living in a Catholic world.
WRT annulments, again, the teaching has not changed but oir understanding of human psychology has. Marriage is still a sacrament, and entering into a marriage unfreely can still create the absence of the sacramental aspect of marriage. The issue of the use of artificial birth control, for example, was not so much of a problem when abc was erractic in its effectiveness and not generally practiced.
A quick note on usury: when usury was condemned, high interest rates were the norm and there was not a lot of investing. It was more like loansharking than a bank’s mortgage; people were getting rich off poor people’s misery. When the economy developed and the rates of interest were connected with the loss of use of it and consequently much lower
than usury was, a different financial instrument arose. Usury is still condemned by the Church.
Now, with all due respect to the historical theologian from Yale, is he Catholic? Does he understand how Church teachings work? Because even the most intelligent person in the world cannot be an expert on everything.
Hmmm… apparently you don’t understand the Church’s history of moral relativism. When it became unfashionable in society to persecute Jews, then it reduced its persecution. When it became more fashionable in society to get divorced, it changed the rules on annulment and increased the rate. When it became fashionable in society to lend money, it changed its moral stance on money lending. When it became unfashionably to burn witches, the Church changed its practices. When it became unfashionable to own slaves, the Church changed its position.
I was have been listening more and more to historical theologians lately, and one from Yale Divinity made the startling comment the other day, on the topic of gay rights, that the Church has lost every debate on social issues which it has ever engaged. I found hit statement shocking, but then with my limited knowledge of history, I could not come up with a single example in which the Church has not eventually been required to change its moral position. Can you think of any?