The Shah was dying of cancer and probably could not have done much. Maybe if he had made his Son the Shah then he could have more strongly fought off the Ayatollahs.
The Shah’s son will rule someday—when the people get sick of the religious tyranny of the Mullahs. It will be a better Iran then.
I have a friend who was a Federal Agent who was assigned t0 the Shah when he was having his cancer treatment and became “friends”. My friend wore a little pin that said Jesus First. One day the Shah asked what it meant. Opened a small window for my friend to witness. He died soon after. So who knows............