How can you hate sex? I mean, not loving it, fine, but hating it?
I hate having my blood drawn, or being punched in the mouth. How can you put sex in the same category?
It's not really normal to hate sex. First, it's part of our animalistic tendencies to procreate. Second, it feels great (if you do it right) and third, it's about as close as two people can get emotionally and physically. Again, humans crave contact. We're pack creatures.
To not have the above desires isn't normal. It generally means something is wrong with you.
So, again, to not like sex so far because A) you only had selfish partners B) you were molested/raped and have a problem with the contact of another human because it brings back memories or C) because you haven't done it right are all decent reasons. To hate sex as a typical reaction is pretty weird.
You should get help, regardless, because you either have some major issues or some sort of chemical imbalance.