I knew a guy who emptied a whole drum of .38 special into a hog that was charging him - though he probably missed half of the shots. Where I live, almost every hunter has stories like that. One told me he once shot a three-legged old boar and found a shotgun slug and several bullets in it.
On the other hand, some people still hunt feral hogs with dogs and spears around here and it’s more likely that a dog gets accidentaly shot than killed by a boar. I heard of a guy who jumped a hog with a knife to save his dog. I’ve only ever heard of one guy who got actually hurt by a pig. They also tend to get used to people easily if they’re not hunted. So the danger is a bit exaggerated.
I think you got that wrong. 300k visitors a year is very, very few. For comparison: Our local open-air museum for old farm houses has about 45k visitors a year. And it’s only open in summer.
San Diego says they have about 30 million visitors a year. (https://www.sandiego.org/about/industry-research)