That's very true, but when did it become a violation of the UCMJ to be a dick? I mean, we don't go looking for spineless animal rights activists to be Marines. We look for guys who are nutty enough to go wading into deadly situations and risk getting themselves killed while they do things that most people would never do like blowing people up, shooting them, stabbing them, etc. So we punish them and discharge them because they killed a puppy???
I mean, I know some have said that this can make the Marines look like monsters to some people, but think about the other side of that coin. How does it make the Marines look like to their enemies? How afraid of intimidated can you really be of a military service that throws guys out for killing a puppy? When I was in Korea, I watched a junior enlisted guy get stood up against a wall and his face punched until you couldn't recognize him anymore just because he told a guy I was with that "14 years old is a good age for a wife in Korea" after the guy told him how old his daughter was and the Koreans thought we had been offended (I guess the Koreans have never heard of Alabama, West Virginia, St. Mary's County, etc.) The next day that kid showed up for work even though he could barely see. The Korean Marines lose guys every year when they get killed during hand-to-hand combat training! Do we really want a bunch of wimps going up against guys like these?