There's nothing wrong with arguing. Bickering is bad, but arguing, done rightly, is just two or more sides with opposing views logically discussing an issue. And for what it's worth, the war and abortion topics here were by far the most civil such discussions I've ever seen on the internet. If there was a problem with people spouting meaninglessly about things they don't understand (which I didn't see much of at all), maybe the thing at the top of this page has something to do with it.
Besides, at least every week or two we get a new user (or not so new) spouting meaningless garbage about video games they don't understand, and we don't ban video game discussion.