Youngbuck... while I admire your enthusiasm, and don't fault your thinking a bit, you can only apply your opinions to yourself. Ethical hunters are concerned about shot placement. Caliber doesn't matter. You can drop an elephant with a .22, as has been done. To say that ground sluicing is unethical, on the other hand, is beyond your scope of opinion until you witness something that you deem unethical and if you want to call out someone YOU HAVE SEEN... fine, but to say, for example that ground sluicing is unethical is not only not true, its none of your business if legal.
You can tell a sportsman by how he conducts himself in the field. It has nothing to do with caliber, with style, or with his competance. Sportsmanship, on the other hand, has nothing to do with hunting, other than letting a geezer shoot first out of consideration of age or letting the ladies shoot first. Some people think sportsmanship has to do letting a bird fly first before shooting, or stalking bears rather than over bait, but wait.... what about cow calls or Bull elk roars... is that sportsmanship? Luring in a lovesick elk, moose or deer? Many many questions that for some they feel isn't a challenge and therefor not ethical.
well gotta go ... but I'll be back....