If I had been in California before the gold rush, I would be rich! If I had sailed around the Earth before Magellan, I would be famous! If I had written Mickey Mouse porn before Steamboat Willy was released, I could sue Disney for stealing my characters instead of the other way around! If I had lived in the middle ages, I wouldn’t have to look at AI slop!
It’s a common enough thought, but it’s not a particularly interesting or productive one, so most people don’t dwell on it.