Is it normal that I have no interest in sex only fetishes?

That argument is nonsense. Its absurd anyone has ever presented it to begin with. If people in those fields are arguing this they should not be in that field. People are a lot deeper.

Its like saying the nerd is JUST a nerd. Its not like they only fit one category. People are very complicated creatures. This would be the same as putting someone in a stereotype.

All blacks steal and all Mexicans in the US are wetbacks. Well clearly that is bull shit. We do not all fit stereotypes. Characters on shows and tv might but people do not always fit a category. Granted some do but that is not 100%.

We also have people who come from bad homes but they do not always turn out as bad as their family. A rapist having a son does not breed a rapist. You can not damn a child for something that happened before they were born. They did not choose to be born into that family and they did not choose who raised them.