I'd say shes over reacting! If anything Pokemon is (in my opinion) harmless and should be enjoyed by kids. Its natural for kids to watch such films as those!
I am also 19 and to be those anime are like kids-play. She should be glad that you weren't watching things like hentai etc lol. It's not like you're going to go out and just start beating the crap out of some alien because you saw Goku do iton an episode of GBZ.
YuGi, Ash and Goku are hero's and badass one's too!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.