The South African govt (pro ivory trade) had a big spat with India over the CITES ban (no longer in force) on ivory trading. SA has been planning to (and may have already done so) "cull" about 3000 elephants. The rationale, uncritically reported in the UK media, is 'overpopulation'. There may be some truth in that due to mismanagement and the ignoring of contraception as a (reversible) means of controlling numbers and the movement of humans into wilderness areas, but another huge motivator has to be the ivory trade. The chinese trade such a lot with many african countries; China's become the major trading partner of many very govts throughout Africa. So it's not just the illegal ivory trade that is a problem.
I always try to avoid buying anything bought in China but find it near impossible. Try buying a computer with no chinese components?! (imposs). But if I see clothes or stuff made in China (M&S are particularly culpable) I won't buy them as there are alternatives.
Plus my neighbour (American) had her beloved cat die from the Chinese melamine contamination of pet food last year. I believe contaminated toothpaste from China was sold to poor people in South America and quite a number of people died or became extremely ill as a result. Plus of course, their 'medicine' means (as well as what you've said) the near extinction of seahorses, of which they take 2m a year out of the sea.
Plus of course, not to forget that they are an appalling regime for human rights abuses, at home, in Tibet and abroad (Darfur being the most notable example) and that they do stuff like jail someone in a hard labour camp for 1 year for taking photos of a shoddily built school collapsing in the recent earthquake, in which so many little kids died.
Right now I'm trying to avoid the flipping Olympics on TV and in the papers. All we can hope is that it focuses the world's attention on the political reality too. I'm sorry your petition and lobbying didn't work but suppose it was inevitable, given that they are the new economic powerhouse.
Rant over, but I feel strongly about this too.