It would make sense to me if there was a "hunting league" like the NFL or something which had rules on what you're allowed to use, but why should this be a law?
It feels like making RVs illegal because they make camping too easy. If you want the challenge, just don't use them?
And if you wanted to know the REAL reason these laws exist, it's the same reason that gyms over-sell memberships. In many places, including where I live, the state wants your money, but don't want EVERYONE with a license to get an animal, because that wouldn't be sustainable. There are places where more tags are given out, and special hunts are provided to do actual population control, but I'd wager that a lot of states don't have that level of problem, and simply want the cash.
So there ya go. It keeps the "sport" of hunting alive, and generates more revenue for states because they can sell a ton of tags that don't get filled.
If I was successful every time, I'm not sure I'd enjoy the game as much. And if you've ever hunted, you'd know that you can do everything right and still walk away with nothing to show from your time. That's how it goes, anything less and you end up with killing and not hunting. I appreciate the meat in my freezer, if/when it comes, but being able to guarantee it isn't what I signed up for.
Plus, that "over-selling" is money into outdoor conservation, as long as it's not mismanaged to hell I don't care that they get a little extra. If you start moving that money into other bullshit then sure, we have an issue. But most of us like the outdoors and want to keep it around.
Deer are pretty smart, but they are crepuscular which means they feed at dawn and at dusk, when it’s harder for predators to see them. Using lights gives a hunter a huge advantage.
But doesn’t a hunter with a gun already give you an unfair advantage over a deer?
Hunters would prefer to hunt by daylight, for the most part. If light-hunting at night were allowed, that would be the only way to take the best game, because as the comment you're responding to notes, it's much easier.
So everyone would be forced to do the thing they don't want to do, if they want to take a deer at all. That's a bad equilibrium, what we call "not sporting".
As a non hunter, I was thinking of hunter vs deer not hunter vs hunter. That makes perfect sense.