Do they? It’s city dwellers who never seen prey and feel guilt. Regular hunters just skin the carcass and think where to store it. Guilt is a social emotion that leaks into areas which are not clearly separated in an experiencing mind.
Regular hunters != industrial-level slaughtering. There are plenty of "regular hunters" who only eat meat they kill themselves. This is like saying if I cut down a single tree on my property I should also support the clear-cutting of the rainforest.
All that said believing no animals should get slaughtered. If we do it to some, could as well do to many. See https://news.ycombinator.com/item?id=42642138 tld: I don’t believe in reducing numbers, because the reduced numbers mean nothing to the animal being slaughtered.