It may be true that collecting is the second biggest threat, but making laws to stop collecting but none to curb developement of habitat, is kind of like saying that if I live in a neighborhood where bullets are the biggest threat to my life, arrows are the second biggest threat, as long as I have a wooden shield that deflects arrows I will be safe.
Sorry for the analogy its the best I could come up with, but you get my point.
Furthermore when laws are made that prevent captive breeding, then it's like there is no escape "plan B" either.