First off, ground squirrels don't really show up at night. Coyotes do most of their damage at night. Hawks do more for the squirrel situation than Yotes. I'm a farm kid and if you saw what Yotes do it's just crazy. Eating calves while they are being born sticking half way out the Cow's ass end. They kill a lot of young Deer. They'll eat every Chicken you have. They'll kill and eat what ever they can. They are a ruthless predator. They'll kill your dog or cat, they'll eat it if they feel like it. Or just piss on it and move on. They are a land Shark but much smarter. They have big litters of pups. They are not endangered and have no real natural predators to keep them in check.
Basically, it's like having unlimited Hammerhead Sharks. There is a reason there is no "season" or bag limit on them. Even F and W knows we have to shoot them. Why wouldn't they have a "season" for them, or tags if they could make money off of it? Because they are like a locust that will eat everything.