Board Thread:Speculation House/@comment-68.48.137.130-20161128005048/@comment-30371209-20161128005740

Let's keep in mind they were able to tolerate Roman Torchwick when he provided them with things like the Paladin, and Torchwick is a guy who dosen't at all sympathize with the Faunus. Another point to mention is the White Fang was once peaceful, it's entirely possible some of the original members are willing to strike an accord and already had human contacts prior to white going for red.

It's possible, and honestly as you said probably varies cell to cell of the White Fang movement, it's not a hive mind after all.