Why do my parents hate when I watch anime?

Ok, I am a huge fan of anime mainly Naruto. My parents hate it. I role play and talk about it alot, and they say I am obsessed. My mom seems to be open to it, she just doesn't like it. My dad gets ticked even if I talk about it. I have a Naruto jacket and my dad lectures me every time I wear it. It's like he won't even accept it. I like to listen to vocaloid music and dance to the bakunyumorion and Lucky Star, yet he won't accept it and he has limited me to one hour on computer because of it! What should I do to make him see I will not change. (I've already tried telling him but I got in trouble) I do NOT watch perverted anime, I NEVER do. He knows that. Will he ever accept me for who I am?