Risking to get beatings by the wilding-friends here, but anyway:
How should be ANY greater amount of consent between women south of the wall and their possible kidnappers from the north? The north has nothing to offer but a cold, primitive life (even for medieval standards), under the threat of violence and hunger which is even greater than in rest of Westeros. I see not way how the would-be kidnapper could court a girl or women to get consent to run away with him – if they come south they are hunted even more than normal criminals and there is a much greater difference between the cultures. That a girl runs away with a criminal like a robber or pirate, smuggler or poacher that may happen sometimes, but a man from behind the Wall?
Ok, there is the tale of that Stark-girl Ygritte told, but I think this could mostly count as legend…
I think in the most cases the best a kidnapped woman has to await is that she and her kidnapper come to an agreement sometimes later after “marriage”. But the first time must be traumatically – let aside how much respect the “kneeing people” could await in the far north. But perhaps I had a little bit too negative point of view of that women stealing subject…
That mean not that there are not exceptions in which there is consent in traveling north, but I believe that is hardly more often than one in ten cases or so I would say.
It might be other if children are stolen - if they grow up and were treated good by their kidnappers it is very easy to believe that they become a regular part of the tribe, since they forget their old life, but the main victims (although small in number I guess) seem to be adult women and older girls.
DaimosofRedstone You are right there may be very isolated tribes, but I think that is much more the case in the far, far north, in the land of always winter, the land of the Thenns – areas from which raiding parties are surely rare. The “regular” raiding tribes in the southern parts of the Frostfangs and the Haunted Forest etc. seem closer in contact with each other.