Agreed. But I would also say that the person 60 years ago is not the same as the person they worship. It may be based on them, but it isn’t them,
The example I always use is the villain Bloefeld in the James Bond novels and films. Ian Fleming based him on the father of his school friend, who had the same name. I don’t think anyone would claim that the “real” Bloefeld is the one from the novels and films.
That’s my problem with this debate. As I said, it doesn’t matter whether or not there was a real person the character of Jesus in the Bible was based upon because the character of Jesus in the Bible is the one that Christians worship and he definitely did not exist.