The author suggests that the use of the hashtag #thuglife is racist. What kind of moron thinks pointing out the lack of behavior attributed to a "thug" (which, by the way, is not even racial in nature) in an ironic way is exhibiting a form of racism?
Then the author attributes the word "ghetto" with racism. News flash: ghettos are never fun to live in, much less visit. Certainly there's racial undertones because traditionally ghettos were populated by a single ethnic group, but even the explanation of the example by the author disregards race and focuses solely on the poor conditions of the area.
I won't comment on number 3 because there's no arguing with emotional instability.
On number 4, I have to say that it is definitely racist to say any ethnic or other group in general is bad or sucks, etc. That being said, I have lived with white anglo-saxon protestants for most of my life, and they can definitely be super lame. Perhaps it's an excessive amount of lameness that forces people who deal with it on a regular basis to lash out at the whole populous. Not good, but at the same time, I totally understand what the hipster is saying. And is it hurting anybody? I don't think so. The least-oppressed group can stand to take a few knocks for their flaws every so often.