So because white men have been doing it for millennia the solution is to mimic their wrongdoings?
Way to miss the "this is consequences" part. Removing support from someone for being a jerk is acceptable, as opposed to how minorites have been cancelled for all of history, simply for being minorities. It's only news now because those who thought they could always get away with whatever behavior they wanted are realizing that's not the case.
The problem is the consequences often don't fit the crime, see the case of Justine Sacco. Or someone getting fired because they made a single stupid racist joke a decade ago, or the recent case of someone being fired for simply quoting a political study. There's no nuance or second chances allowed.