I think I understand what the point was supposed to be, but the execution is just terrible. In the article, she uses the same arguments used here to justify the treatment of black people in society, which would be a good point, but using North Korea as the backdrop is horrible. People who agree with this article (and the author, by the end) appropriate the suffering of North Koreans by going "hey man, we get it, we've been there" -- even if it's directed to Warmbier, North Koreans live with this reality every day; they then turn around and defend the dictatorship that causes their suffering with comments like "he deserved it for breaking their laws", for no other reason than a person from an American privileged class is finally getting knocked down a peg by them. You can't defend a broken system (and that's a generous term here) just because it happened to punish someone you don't like.
Eric Garner, Sandra Bland, Mike Brown, and others like them, died because of American racial issues plaguing America, not because they lived in one of the worst dictatorial regimes in modern history where literally anyone and their family could be executed or be sent to a work camp. Comparing anything in the US to North Korea just seems to really trivialize just how bad things are over there.
Also, why the hell is anyone believing North Korea's version of events on anything?