Comment by SpicyLemonZest

No, that's not accurate. When people talk about the "deterioration of race relations", they're referring to a well-documented phenomenon (https://news.gallup.com/poll/1687/race-relations.aspx) where poll respondents say race relations are bad (and trending downwards) since 2015 while they were good from 2001 to 2013. I'm skeptical that Obama bears any responsibility for this, given that the trend didn't start until his second term, but it's a real trend and not a euphemism.