To offer another perspective:
I thought it was a commentary on how a lot of shooters that have made the news--Elliott Rodgers, James Holmes, et al.--have been angry white young men. There certainly have been a number of think pieces on the topic.
(It's always tough because people tend to treat all kinds of racism alike on the Internet, with equal weight. But I'd argue that a lot of the stuff we see about making fun of men/straight people/white people is a pushback against the kind of casual, unthinking bigotry in society, where white/straight/male/etc. is just sort of accepted and respected and deferred to without question--call me idealistic, but I doubt the vast majority of women hate the vast majority of men and think they're predatory creeps, for instance. Meanwhile, racism towards black/Asian/Latinx/First Nations people is an expression of that casual, unthinking bigotry, and has more long-lasting and pernicious consequences online and in the real world.
Saying stuff about "angry young white men" isn't a nice thing to do, to be sure. It fits the most basic definition of prejudice. But people will use the "prejudice + power" definition for bigotry, to which other people will come back with "horsesh**, the dictionary says this", but I think the greater context is being missed--that racism towards minorities has greater weight in terms of society's giant see-saw. It has bigger consequences. The young white guy who reads this may feel pissed off, and that's fair. But he can still go out and get his pick of jobs, or get a mortgage loan, or not be stopped--or worse--by police, or see himself in TV and movies and literature. And that's not unimportant to remember.
Personal anecdote time: I'm Christian. Whenever some atheist people talked about Christianity in that mocking "imaginary sky friend" way, I got ticked off. Then as I got older, I realized it really ultimately had no impact on my life or my belief, and some of the points they were making were pretty germane, and a lot of them were speaking from harsh experiences with the worst butt-ends of Christianity: conversion camps, homophobic nonsense, the Westboro Baptist Church. So I didn't take it personally.)
Right, WAY back on topic:
Faye versus Bar Lady--who wins?