I guess it's the whole "image" thing that is over my head. I don't use an AK to hunt with generally, but I have used several other guns equally as scary to the antis. I'm not out there to appease them, I'm out there to hunt. The very fact that I have a gun displeases them, and the fact that I'm hunting displeases a whole other group of them. I hunt responsibly, regardless of the platform I choose. But I hunt to please myself, not them.
I don't let others perceptions influence my decisions. The fact that most of my friends ride Harleys because of the "image" doesn't influence my decision to ride rice burners because of the performance. I'm content driven and what others think is entirely irrelevant. Remember that your Enfield was also "a fine weapon for killing people" in it's day. Most of our guns were.
What's most important is that hunters and shooters behave themselves and act ethically. To show ourselves as the responsible, upstanding people that most of us are. If we give in to the media villifying our weapons, guess what? Your inoffensive bolt action is next. They're already being called "sniper rifles" by the media, and afterall, it's not sporting to hunt with a sniper rifle, is it?
Hunting with these guns also gives some legitimacy to their sporting purposes. Remember the Zumbo affair? He blatently called AR-15's terrorist guns and said nobody hunts with them. He was wrong and he learned a hard, fast lesson because of it. There's no real distinction between a "battle" gun and a sporting one (your Enfield is a good example), other than personal taste. Personally, I love blued steel set in fine walnut, but I certainly don't think that those are the only guns that serve sporting purposes.
Remember also that there are as many reasons that people hunt as there are hunters. Some hunt for trophies and nothing but the biggest will do, others keep some sort of "score" like it's a game or competition, some think there should be some type of "fair chase" involved, while some others are just there to harvest an animal for meat, and there are always some who are just there to kill something. I'm sure some of the AK owners fall into that group, but for sure a lot of the "take them at 500 yards with uber scopes and hyper magnums" folks do too.
I guess the bottom line is do we really let them tell us what to think? Do we let others set the "stigma" and "image" for us? It's our sport, not theirs. Lets just enjoy it, each in our own way, with whatever platform we choose. As long as we do so responsibly.