I don't think this is quite fair as it is a very general statement. There is no question that long range hunting techniques appear most highly developed in the USA where they seem to be practised more often than here in the UK. It is likely that there are many driving factors behind this - some social, some related to technology like accurate rangefinders and some down to the simple fact that they have more land to shoot over than us.
However, it seems a little unreasonable to assume that long range hunting is not a skill in itself or that it is necessarily unsporting as a general method of hunting deer. Having the confidence to make a one shot kill at many hundreds of yards in real world conditions, and every real sportsman will be confident of a clean kill no matter how he hunts, is certainly an achievement in my view and I'm not at all sure that I could ever do it. Also although we imagine that stalking into a deer is a much more advanced stalking or fieldcraft skill than setting up at 1,000 yards and shooting it from there it also occurs to me that selecting a location from which to take a 1,000 yard shot requires a lot of knowledge of the lie of the land and the movement of the deer. Yes, this knowledge is different to that required to get within 50 yards of a sika in a forest but that doesn't make it any less of an achievement when this knowledge along with shooting skills come together to achieve a clean kill.
Now for a lot of us our view of long range hunting is somewhat coloured by rather unpleasant youtube videos that appear to show people shooting animals at long range where the "achievement" is the range rather than the stalk and the clean kill. However, I imagine some aspects of our stalking here in the UK might not look so good if all we knew about it came from youtube. Of course I can't say that for every clean youtube kill there aren't 10 wounded deer running around but what I can say is that it seems unlikely that we in the UK are the only hunters to have high moral, sporting and animal welfare standards. It also seems likely that here in the UK we have the same proportion of "hunters" with a rather lower set of personal standards as are found in the USA.
When I have the skills to be confident in achieving clean, one shot kills on deer at 1,000 yards after selecting a suitable location to set up my rifle etc. then I will be in a position to decide if this method of hunting is fair, reasonable and sporting. Until then it will have to remain something about which I know so little that I really am not in a position to comment on the method in general. Of course, like others, I have some pretty strong and negative views on some of the long range hunting videos as seen on youtube but considering a specific event wrong does not mean that I can generalise and say that all long range hunting is wrong and that it is some form of America affectation which will never be found among stalkers here in the UK.