I really don't think he pinned down enough of a "message" for this to be particularly offensive. It was just sort of a bunch of TV and video game references mixed in with some attempts at geek stereotypes....
...from yet another guy who thinks that having a pirated copy of Fruity Loops and a $50 keyboard make him a "musician." And that looking like something cloned from Al Franken's pubic hair makes him "intellectual." And that having the ability to upload a video to YouTube makes him "relevant."
I will say, though, that I wish people all over the world could stop making their most personally-defining label of themselves their ENTERTAINMENT choices (gamer, sports fan, etc). Labels like "Gamer" have no useful meaning to anyone outside the "gamer" circle, and using it INSIDE the gamer circle is like reminding everyone you're a human being.
But really, that's a symptom of a societal problem that affects nearly everyone. Ask someone "What do you do for a living?" and they'll talk about their JOB next. Next time someone asks you that, say, "What do I do for a living? I LIVE. Working is what I do for MONEY." And similarly, let gaming be what you do as a hobby.