Stereotypes prevent us from understanding the healthy nature of sexual tendencies. Sex is healthy when it does not harm, hurt, or destroy. Sex is an instrument of aggression when somebody hurts the other physically, biologically, emotionally, socially, politically, etc. One should not call that kind of behavior sex. One cannot pass the virus, cause physical pain, humiliate, abuse his political power, or emotionally hurt his partner and still call it healthy sex.
Healthy sex creates joy, self-respect, and personal growth.
It provides safety and trust. It makes for good feelings like warmth and happiness. Such things, for me, are healthy. Codes from holy books should not holify what our minds and senses tell us is nonsense. We could learn about our heritage and our religion, but this does not mean a blind acceptance or being a prisoner of our pasts.