Yes, viewing oppression solely through the lens of race would leave us blind to other injustices, like the crushing poverty of the dirt farmers. Likewise, viewing oppression solely through the lens of class struggle would omit the systematic inequalities imposed on goblin kind, which are distinct from the general mistreatment of the poor. You're right to push for an intersectional view that acknowledges multiple injustices, but that doesn't cancel out the oppression of goblinfolk.