After participating in and reading the differing viewpoints on the thread, here are my thoughts and observations.
1. In my slightly revised opinion, the main reason why race relations have deteriorated in the last decade is because of the widespread opinion that racial inequity is a problem that has already been solved to the extent it reasonably can be solved so why keep flogging a dead horse. This opinion seems to be most widespread among whites and least widespread among blacks with other ethnicities at varying points in the gradient in-between. As de jure equality of opportunity has conclusively been established, there doesn't appear to be much more, if anything, that can be done short of enforced equality of outcome.
2. Following on the same note, the widespread opinion that equality of outcome is a horrific system to implement makes race relations in the United States an issue that resonates predominantly with only blacks. Other non-white ethnicities have noticeably less interest in legislating equality-of-outcome measures. As such, it is unclear what exactly the point of harping on about race does except to try and enforce equality of outcome.
3. To put it charitably, police brutality too is seen as exclusively a black problem that doesn't affect anyone else. Police brutality, to the extent it exists, is treated, in varying degrees by different ethnicities, as a natural reaction to disproportionate violent crime rates by one particular demographic. From my observation, people do not really care on the historical or socio-economic reasons why black people are committing so many violent crimes, the default response is a variation of "stop committing so many crimes, problem solved."
4. Arguments centered around slavery and the history of slavery fall on deaf ears especially when presented as a point in arguments to white people. Slavery is too remote and far away to be shored up as a credible proximate cause for any problems today. Me, personally, I think it more credible that CIA and the crack epidemic had a far more direct and noticeable impact in shattering the black community than slavery.
5. The predictable reaction to a hyper-focus on identity is an alarming number of whites banding together due to their whiteness. This is not something that is desirable to see as an ethnic minority and this is counted as a further reason why politicizing identities needs to stop yesterday.
6. People are far, far, far more sympathetic if issues are framed in economic and not racial terms.
I have to also say one other thing to this. This has probably been the most informative discussion I have ever had on race and I hope others feel the same even if we do not all agree.