Do you actually know anyone who could have avoided bullying and chose not to? (Not counting taking the fall for someone else.) Nerdiness is a deep-seated personality trait. Given that you can't change it in a couple years while you're busy surviving bullies, you might as well make the most of it. If you avoided physics and anime, they'd pick on you on some other pretext.

Internet feminists claim that avoiding looking attractive is like shunning physics and anime; it won't help, because they're after women and are just using attractiveness as a pretext. This appears not to be true in reality.