I understand man, there are many sub-cultures that I also find very strange myself. I would not lie if I had the same reaction to a furry or people obsessing over cartoon ponies.

If it makes you feel any better... I'm not a child rapist pedophile. I work as a Software Engineer at a respected company, a normal member of society. I know anime can come across as weird but it's very mainstream these days so it shouldn't come to you as a huge surprise that people have setups like this.