Having first started big-game hunting out West on wide-open public land (where dogs are not allowed), I thought it was against the ethics to use them. Having moved to FL and seeing the thick, impassable undergrowth they use dogs to push the deer, I would not have an issue using them. Personally, I consider a stand in a tree sitting next to some food plot to be more unethical than using dogs to drive them. Out West, if you planted some form of food plot next to a watering hole the DOW is going to be confiscating your truck, gun and handing you a big fine while taking you to jail.
Different parts of the country have different ways to make it work with their quarry and their environment