I'm assuming you believe killing is a sign of power? Well then you'd be wrong. It is nothing of the sort. And if you want to get technical, Sasuke hasn't "killed" anyone either. In the same magnitude that Naruto had taken out the Zetsu, Sasuke took out the Samurai's at the 5 Kage Summit. He hasn't actually killed anyone. Danzo and Deidara committed suicide and Itachi let him win. Itachi died because of his disease.
And nobody is subject to discrimination for being a Sasuke fan. If you're stupid while fangirling/fanboying, expect people to pick on that. That's the nature of stupidity.