The New York Magazine article notes the following:

On identity politics used by minorities

What happens is that minorities set out identity-based concerns which many whites reject as divisive because they have been forced by left-modernism to repress their own ethnicity or because they can’t see that their ‘national’ interests may actually consist of sublimated ethnic desires. If whites set out some explicit identity interests apart from those of the nation, this could allow them to better appreciate minority claims and vice-versa, producing a shared understanding … The current dispensation in which white conservatives attack even moderate minority interests as ‘identity politics’ only leads to polarization.

On how whites should use identity politics 

It would be easy to throw out some objections on behalf of my left-modernist readers here: What, exactly, are “white interests”? Even if they exist, who’s to say that they won’t inevitably be tinged with racism or feelings of superiority? And isn’t the whole weight of our country’s history already tilted toward the expression of whites’ “sublimated ethnic desires”? 

This is is a glaring example of identity politics being a useless term. We need to know What specific grievances minority groups are addressing and why whites object. The article notes that whites have diversity anxiety so we need to know if there is anything that the white community can do to lower the anxiety in their community. It is very unlikely that they will be willing to listen to corrective measures offered by minority groups. The term identity politics as the author uses it does not aid the discussion. What do whites want? If the core issue is anxiety about diversity, we may not want to hear the answer. At CPAC, they are talking about AOC coming for all the hamburgers. Doesn’t bode well for dialog. Neither does the cover for Trump that went on at the Oversight Committee open hearing.

Rwanda happens when the group gets anxious and dismisses the other out of hand. So-called identity politics actually means groups looking out for what they think is in their best interest. The Right is looking like the Hutu.