Again, we want to discuss the ethics of hunting with dogs legally, as opposed to the theme/title of the OP.....Illegally using Dogs for Deer
Most anyone who posts here in the Hunting Forum is not opposed to the legal use of dogs for hunting. For over half a century, I have hunted behind hounds, flushers and pointers. I have used dogs for the legal blood trailing of wounded deer. They are a huge tool in many hunters arsenals. IMHO, the huge amount of the various dog breed we have, are because they have been bred specifically thru the centuries for helping us humans hunt. Period. I doubt that this will ever change. But I do believe that what is and what is not legal to do with dogs will change. Just as the laws about anyone shooting a dog chasing deer has changed. Just as what species that can be hunted with dogs has changed. Not only has that species list gotten shorter, but in the case of my state, it has gotten longer, with the inclusion of using dogs for hunting Fall Turkeys.
...and this is the issue. In today's world, most folks don't have that land, nor do they have permission to hunt other lands where they "have enough land available". While in many parts of the country where there are large parcels of public land that will provide this, there are also many areas/sates that do not. This is a major reason hunting with hounds has fallen off so dramatically. For those running hounds that demand a large area, it is frustrating for those who still do it. But it's just the way it is. Most dog owners are responsible. Most follow game laws and regs. Some will bend them a tad, such as allowing a dog to kill a 'coon or 'possum "shaken" out of a tree, or a 'yote too tired to run anymore, but even those are declining. As are the ethics of dog breeders who used to automatically put down the runt of a litter or any pup that did not meet their expectations/desired traits, by the time they reached the age to be sold. But as long as there are humans alive that still hunt, there will be those few that will do unethical and illegal means to increase their chances of a kill. Unfortunately, we will never get away from that.