I bring a fixed blade knife hiking. Can split wood in a pinch. Not nearly as heavy as a ka-bar, though.

Your point still stands, though. I had a military pack and couldn’t believe how heavy it was even when empty. Ultralight hiking gear is pretty amazing and optimized for an entirely different goal. That said, I still feel like specialty gear like this is a different class than the average consumer stuff.. closer to industrial or military in design than Amazon junk.