So is having sex or reading or knitting or remodeling the kitchen a sport?
None of those have rules that must be followed. If my wife is knitting a sweater and the pattern says K2P4 and she K4P2 she can't get a ticket. If I remodel my kitchen and decide I want to use 18 different colors of granite, I won't get a fine. If I hunt and break the rules (either state or Fed), I can go to jail, get fined, loose my license, etc.
With regard to the OP, you assume facts not in evidence. You are projecting feelings on the animals that haven't been proven exist. How do you
know that these animals are experiencing the feelings you are attributing to them? What makes you sure that the spider you so callously smashed wasn't heading out to the web in the kitchen to hang with some of his buddies and chase a little silky tail, when you judged him as unfeeling? You can't be certain that a bear has feelings of joy, or that a fish has a worthless life. This negates the entire premise of your arguement.
Of course, the biggest hypocrisy in the thread, was that you can still buy the meat in stores. The fact that it is available, and people don't buy it effectively proves you are wrong. Looking at it on a purely economic level, it would be much cheaper to purchase the meat and then sit in front of the computer all day. Instead, people choose to go out and experience everything that comes with hunting.
While you believe this shows that we hunters "Like killing", it would only be true if we killed everything we saw with no regard to quality of animal, age, sex, etc. This however isn't the case. We don't indiscriminately kill each animal we see. In fact, if you talk to hunters regularly, you would note that many if not most are very selective about what they do kill. Slaughterhouses, on the other hand, are not. Therefore, following your logic, you actively support indiscriminate killing, since you purchase meat from the store.
Hyperbole aside, you can see that once we follow your logic completely, we see that it doesn't hold.