As someone who emigrated here from North America, I have trained and trained with both categories of people. I find that there is an edge to the survivalist that I have not found with the bushcrafters. That edge is fear.
Survivalists fear something: the end of the world, government taking their guns, climate change...whatever. That fear feeds their need for the survival skills...
I have to disagree. Most survivalists (of the type you're referring to) Don't fear these things; they seem to be eagerly anticipating them.