Ahhh, Beagles! Great dogs if you have the right type for the right job. That is the heart of your problem, genetics. (You can take the dog out of the hunt but you will never take the hunt out of the dog!) Please do not drug your dog, there is nothing wrong with him, do not de-bark him, there is no reason (ever!) and do not have him put down. I am sad to say you will be unable to keep this dog as no matter what you do you can't provide him with the work and companionship his genetic makeup is craving. You have a dog that has been bred from, or is a throwback to, working stock. There is nothing you can do to make this dog's life bearable for him but give him to kennels or a trainer that can give him the pack and the work that he needs. (I am not talking rescue kennels) This is not your fault at all, so don't feel bad and you don't even have to give up on Beagles. Just get one from a breeder who has not bred for working animals and be sure to meet the parents of your dog. I would also suggest that any puppy is going to find being left on it's own all day in a crate very hard to deal with. Think about an adult dog from a rescue kennel. Please release your Beagle from what is, effectivly , a prison for him.