@Pygathrix: Your wish shall be granted-here's the answer, yet it's not the harsh and vain one You seemed to try to provoke:
1. The destruction/ non- or less sustainable use of rainforests or other landscapes isn't a result of one cause; it's multiple factors combined. This variability is important to keep in mind when talking about this subject and asking for the "truth". Due to this multifactorial cause, the shift to a less meat-orientated nutrition among the consumers would mean a shift torwards other products (as 6 billion people want their hunger to be satisfied)-which would consequently increase the need of producing these products. And as products generally don't pop up by themselves, this would lead to the destruction and industrial use of the land, just not for meat, but for something else, as the numbers of the consumers and their need to eat exists, with or without meat consumption. Simplified: if the farmers can't grow beef on the former rainforest, he will turn to something else-f.e. soy beans, pineapples, bananas... The result, the destruction of the natural habitat, is pretty much the same-or even worse. Does that now sound logical to You?
One should not draw the incorrect conclusion that this is an excuse for defeatism, or "nihilism"; instead, it should make You think more deeply how this sweeping vicious circle could be avoided, before falling prematurely for an only at first sight promising option. And the demand that people should eat less is a very friendly one, yet most likely impossible to accomplish: people want to eat, and satisfying their appetite is one of the strongest natural drives humans have. I'm honest enough to say that if I'm really hungry or thirsty, I frankly don't care about the rainforest. Do You @all?
2. Your 4 year-old list (honestly, I'm always suspicious of such lists...) still indicates that the majority of the populations of these countries isn't obese; so is it just the obese members of these societies that are responsible for this calamity? Before You flare up about this obvious thick-wittedness of mine, let me pacify You: I understood Your bloomy paraphrase right from the start; yet I wanted to show that a) the ever-growing industrial and consumptive hunger is no longer limited to the western countries, especially not due to China & India and b) this paraphrase, "fat b." has been so excessively used by various political parties that it's only result on me is one of cynical nature.
Japan btw. is a great example of a sudden increase of obesity in the last years-among others, due to a change of eating. Of course not every Japanese reaches the dimensions of Sumo wrestlers-but neither are the driving forces behind greedy & destructive international wheeling and dealing fat people; most often, the only fat or rather "phat" thing about them is their bank accounts and the limousines they use...
BTW: lederhosen? Sorry to contradict again: like I said before, I'm not a German; and it's awkward that Your stereotype of Germans just consist of such incorrect completely outdated assumptions. The percentage of Japanese being Sumo wrestlers is probably way, way higher than that of Germans or German-speaker wearing "lederhosen" and listening to brass band. Actually, it's mainly the tourists at the German Oktoberfests that wear "lederhosen"-or love the sound of an "oompah band" (not for soccer qualifying matches, though...). And as I can remember, there are quite a bunch of Brits among them loudly enjoying those folklore activities, especially the beer and the neck lines of the cute German girls' dirndl...
3. Thanks for honouring me with the omnipotence in terms of giving "permissions". In the case of NZ Jeremy, however, it was just a acknowledgement of his idea of consumption from my side, even if I don't share his opinion here.
Nevertheless, feel free to follow my "permission" a) to travel to Germany (or some of the other German-speaking countries mainland Europe has to offer) to find out that there's more about these countries than outdated stereotypes and b) not feel personally offended by posts if they contradict Your opinion.
I'm neither interested in showing off or engaging in sexual display patterns to attract females ( this forum isn't the best place for the latter, anyway...

); I'm just mildly alluding to certain inconsistencies and beg to differ if appropriate.
@Jarkari: Thanks for the affirmation.
@ashley-h, I have read and heard many times when vegans & veggies used the term "meat eater" or " meat devourer" to describe people disagreeing with their ideas-and I think I wasn't the only one who somehow received the impression that this was not meant jokingly...
@NZ Jeremy: thanks for the soy product offer-but I grew up in an area full of milk farms, studied a bit about milk science (indeed, something like this does exist) and can't resist the taste of calcium-rich milk and milk products. Additionally, I'm suspicious about the all too positive recent marketing of soy products, espcially in terms of phytoestrogen effects.