Having been in UK and hunted sometimes, my impression is that most of the reason for the UK stats is because most people regard hunting in general as a sport for the royals, nobilities, rich and famous and not so much for the common people.
You have the same problem, but even much worse in Holland where hunting traditionally only has been a sport for the nobilities and royals.
Here in Norway and in US it has been a way for common people to put food on the table for generations, making it much more acceptable for the masses.
I think we have the best chance ever these days to turn the general public more positive to hunting with the new trend of the Paleolithic diet.
It is the same people that might form an opinion(for or against) about hunting that would most likely jump on this new trend.
Sustainable and healthy are two key words for these people.
It can be difficult to make the public understand why we enjoy to hunt, but I think the Paleolithic diet trend has the potency to make our hunting much more acceptable to them.
I totally second what you have said here.
And I wish I had been able to put it into concise words like you have done.
A few short years ago, the semi-famous Hollywood Actress, Suzanne Sommers "came out of the closet" by endorsing the eating of wild game meat and wild caught fish, home-grown fruit and vegetables, for good health / good nutrition.
And, she went so far as to publish a warning about the eating of farmed eggs, meat and produce (she is a cancer survivor).
In other words, she was pitching The Paleo-Diet, probably much to the horror of her former Hollywood employers (her former Hollywood Masters).