Ioyza,
I find your question silly. And your logic faulty. If little green aliens showed up on earth with big heads and tiny bodies and could not survive 10 seconds on Earth without a space suit? But they brought the Death Star, a star destroyer and hand held vaporizers and energy shields?
I think you would find that they would be masters of the planet pretty quick.
Killer whales can survive naked and without tools in almost any part of the planet. So what? Tool use is not a crutch. It’s the result of a big brain and a opposable thumb.