Sexuality is a gift by god in some cases for only worldly comforts but not for spiritual. For one who seek worldly comforts, sexuality can be considered as a gift, but for one who seek spiritual comfort, for him sexuality is a curse.
Sexuality in many occassions may lead to severe problems in society, even may result in death of a person, and so it can be considered also a curse to even to the people who seek worldly comforts.
One cannot surely advance even a bit in spirituality if he seek sexual pleasure.
It is not only sexuality which is inherent, anger, sorrow, hatred, jealous etc..... are also inherent. So you cannot say sexuality is good, since it is inherent.