When you're white and don't agree with the author you're: "privileged white settler". 

When you're white and do agree you're: "non-Indigenous lawyer" (presumably still a "privileged white settler" but as that term is intended to be a racial insult it is no longer used when you give money to the author's causes).

I agree with the author's main point:  focus on improving people's lives and communities on the ground, not academic inherently divisive identity politic debates on how best to limit non-violent free expression.