I responded that eliminating predation begins at home with vegetarianism, and that the point is not to get there all at once, but to remove the worst instances of suffering in nature, like predators eating their prey alive.
It's not about telling people a false "story" like Santa Claus, because I openly admit that we are nowhere near a pain-free world. All I am saying is that such a world would be a good thing.
Historically and contemporarily, our world contains so much suffering that it almost seems like a suffering-centered joke-world. I identify with a post-suffering world at the expense of my identification with the current world. I consider a post-suffering world to be a "natural" state and our present world to be "unnatural".
Most Westerners do not really understand how terrible it is to live in many places around the world. There are concentration camps in North Korea where people are tortured and chemical weapons are tested on them. You can be put away for 20 years just for listening to South Korean radio. Your entire family may go to the concentration camps if you commit a political crime.
Rape, torture, and sexual slavery are common in most parts of the world. It would take a military campaign with tens of millions of occupying soldiers and police to even make progress towards stopping it, and you'd have to count the soldiers and police to not commit crimes themselves.
When you see how messed up the human world is, it makes sense to then look at the animal world and see how fucked up that is. Again, it's a joke. If a god made this world, that god is a wicked being and should be forsaken.
Refusing to participate in the cycle of violence is as easy as becoming vegetarian, or preferably vegan. Start with quitting pork, because pigs are the most intelligent, then move on to beef and chicken. Vegetarianism has become more fashionable in recent years, and that is a good thing. Developments in in vitro meat will alleviate much animal suffering as well.