I just feel such an affinity for the Borderer that I have to defend it's maintained existence in this system
I am absolutely not suggesting that the Borderer as an archetype should disappear. I just think it is better reflected by Barbarian (or Nomad with some tweaking).
Really, I thought the barbie was more an undisciplined warrior, not the master of the wild
Mostly he is, but he does get outdoors skills and a few feats.
The reason to make the Barbie, Nomad, and Pirate the same and classify it as a raider makes more sense as it is taking the fundimental outlook of fighting style into account
There's more to class than fighting style, its the full skill set. Anyway, Nomad and Pirate are not very similar fighting styles; there are few instances of mounted naval combat, and Pirates are not really up for wilderness survival. Beyond a bit of fishing. Barbarian is closer, but the skill sets are different.
definately dont have the direct influence from a barbaric culture to warrant them being barbarians.
/sigh. Classes are not cultures. You don't need any influence from a culturally barbaric people to adopt the skill set referred to as "barbarian".
class is as much of a definition of your culture as your race
It is utterly and absolutely not. An Aesir noble will have far more in common with an Aesir barbarian than he ever will with a Vendhyan Noble.