I think what you said was a overkill. Its true that some of the animes are sick, but so are some of the TV shows in the US. Anime cannot simply be categorized altogether into one single group.
What people need to understand is that anime is simply a visual media presented in cel-shaded animations, subjects in the anime have no direct relationship with it.
Its like watching TV, there are nice programs and at the same time there are some sick and twisted programs. Like as any other television shows, different animes are made to appeal various age/social groups. The conception of "anime is for (insert age/social group here)" seem so naive to me.