Survival knives come with a miasma of cheap quality, are often gimmicky things with hollow handles, full of carp, that break if you look at them the wrong way.....or they are Klingon-ised to appeal to the tacti-cool seekers.
There's one caveat, to save sharpening they're often made from a too brittle steel, and the blade chips or snaps
Any decent knife will do for real survival, and certainly for bushcraft. I have ones both with wooden scales and micarta ones, I have leather stacked and birch bark stacked ones too.
I use them all, and I use them all in wet and muddy and among soil and plants and I still use them for carving as well.....and I can and do use them for hides and kitchen stuff too. Sharp enough and learn to use them. It's not rocket science, our ancestors managed with stone for heaven sake.
In all the years I've been using knives I have damaged three. The scales came off a mini Canadian, the tip broke off an opinel, and I delaminated a polar. That's it. I could still have used any of them if in dire need.
If your knife rusts, clean it up, pdq. It's not a drawer queen, it's a blooming good tool.
Ah, but, they've become the bling of the bushcraft or survival world have our shinies
Big knives, little knives....they all work; it's what can you use effectively that matters, I reckon.
cheers,
Toddy