Small Incest Pics Top Whats Up With The Incest In Manga/anime!?

Whats up with the incest in manga/anime!? - small incest pics top

As a reader of Western Asia, I find it very disturbing. If you had to go through here, so causing much controversy. In the above case, incest eng / sample, it does show that the mangaka are spoiled pedophile!?
I know that only a small portion of the sleeve includes incest, but please tell me about the introduction of something calling, if not in a manga (ie, Fruits Basket)
(I want to offend anyone, btw .. I thought it was weird)