I don't remember being this big of a wimp when I was twelve.
It's not about being a wimp. It's about having the decency to realize when something is simply messed up. I didn't mind it at all myself until the last part, because truthfully, there are people like that. And they tend to get shunned when they shouldn't. I guess I somewhat expected it to be a lesson toward society by pointing that out, but the last par just proved that theory wrong.
To put it simply, being disgusted =/= being a wimp.