On his blog, Above 49, Nels Anderson (of indie developer Klei Entertainment) has offered an emotional and persuasive argument against the “It’s just a game” mindset. The whole thing is well worth a read and the concluding anecdote is especially moving so I strongly suggest you should read it.
Now, have a quote to get the ball rolling, for I would like to comment on Anderson’s main idea:
(…) often, when anything negative is said about a game, the response will come, “It’s just a game. Don’t take it so seriously.”
I think this is one of the most harmful and dismissive things anyone can say about games. Saying, “It’s just a game” isn’t a response to criticism, it’s capitulation.