I find the access question awkward. On BcUK I have to clearly set out the guidelines that everyone agrees to when they join.
I live in Scotland and we have a different mindset, a different law, but if we start discussing it and it turns to politics, then that's a no.
Rights come with responsibilities.
Courtesy and respect and consideration, both given and received, are, I think, every bit as important.
Back to the OP, and his question about bushcrafters.
I honestly believe that it's become a catch-all, catchy, term, that is being abused and over used. Often by those who do not hold to the same values that the majority on this forum do. It's become an excuse to get out there and do what they want, not what they should
That said, it's not only bushcrafters that trash lands....the folks who trashed loch Lomondside so badly that even the right of responsible access has been restricted, certainly weren't bushcrafters. They were just folks out for a night drinking around a fire :/ who didn't give a damn about the mess they left behind or the damage they caused in the first place.
That attitude is not restricted to those who live within short driving distance of loch Lomond though; it's a UK wide issue of littering, of casual vandalism, of destructive firelighting.
Labelling them all as bushcrafters is beyond specious.
Personally I'd ask if I could camp, ask about fires and happily agree to use a stove instead.
Bushcraft = chill out asap
M