Humans are part of the living beings who reproduce sexually. That is, you need a male and a female to come together in order to get a child.
Nature has given our species the gift of enjoying sexuality in both body and spirit.
We should not deny sexual orientation as a normal part of humanity and a natural requirement for our reproduction. On the other hand we should not discriminate people who deviate from that norm (see About homosexuality).
There are technological variants of the natural reproduction process. Most of these were developed to help couples who cannot have children the natural way. We can, at least theoretically, imagine to mass-produce human beings for industrial purposes.