HAHAHAHAHA!
Well I am of the mindset if something in nature is so stupid...No matter what you do, they are bound to extinction.
Kinda reminds me of the Panda. They are so fat,lazy, and stupid. We have to FORCE them to breed.
It's not really stupidity that did the turtles in. It's their hard-wired navigation system when they're hatched. As soon as they come out from the sand, instinct compels them to follow the light that twinkles on the ocean water. Before oceanside condos and such, there was never any light on land, so this navigation system worked quite well.
Same with many species of insects. They navigate by the sun and moon and follow a straight line by keeping a directional compass in their heads. Artifical light at night is their downfall, however. They keep compensating for the astonishing "nearness" of the sun (candle) and fly right into it.
Dumb? Maybe. But there are more of them than us, so they must be doing something right.