Proof for a genetic cause is spotty at best.
I tend to think it is a deviant behavior caused by antisocial or psychotic thoughts. There do seem to be some instances of it being genetically based, as in the cases of masculine dykes and very effeminate males (a clear biological screw up in their hormonal chemistry), but I think that in the majority of cases the problem is more psychological.
If I'm wrong and it does turn out to be mostly genetic, then I'm with you and a cure should be sought. Whether it be gene therapy or medications.