Disagreement is fine. That's the whole point of Medium.
The notion that oppressed people need to behave themselves in order to reach their goals is absurd, I agree - but equally absurd is the notion of subjective oppression. Society will go round in circles continually biting its own tail in knee jerk self defence.
Let us presume for a second that I am a white woman and I feel threatened by a black man - for the sake of argument lets say the threat was ambiguous and not outright. Who is oppressing whom in this scenario? Am I being oppressed by the patriarchy? Or am I using my white privilege? And more importantly, won't 'my team' come out to bat for me? I'm sure they will - and the more earnestly they do, the less they listen to each other. In this instance we are simply playing oppression top trumps?
Let's try again, let's presume that I'm a young muslim mother and I've taken issue with homosexuality being taught in my child's primary school. Are people being culturally insensitive or am I being homophobic? The answer is probably both
It is unhelpful to talk about white people and black people as a single homogenous group. They aren't. There are many intersecting lines of oppression and privilege that make up an individual, simplifying someone down to an arbitrary facet of their identity neither aids or forwards the discussion.
You say how many more chances will white people get? You say 'we've already taken that approach' as if you, Barack Obama, Oprah Winfrey, Bobby Seale and Denzel Washington all had the same a) agenda and b) approach. You didn't, you couldn't and you don't. It is monumentally unhelfpul to societal progress to engage in groupthink of any kind.