Why re Dwarven axes not racial weapons for dwarves? An Elven monk or druid at least get proficiency in long swords, whether or not they can use them without negating their class specific abilities I don't know uncentering of the monk or voiding magical affinity for the druid, haven't tested, but they at least get the proficiency.
Am I missing something?
A dual wielding dwarven ax rogue sounds like it could be an interesting build. I know I could spend the feat to get the weapon proficiency but why should I have to when my elven rogue gets long swords proficiency for free?