Why legal provision for gay protection?

Legislation, I think, is for controlling the commitment of things which are not morally and socially acceptable. Stealing is not socially acceptable and hence there is legal provision for it. Killing humans (except war) is not socially and morally acceptable and hence has legal provision, etc. On the other hand good thinks have no legal provision. Love has no legal provision. Giving gift or reward has no legal provision. Marrying opposite sex partners has no legal provision and so on. Why then a need for legal provision gays if it is morally and socially acceptable?

Pro gays reason that being a gay is individual human right. Okay, if a man or a woman (not mad) walks barely on a street in the face of the public, is it his/her individual right? Analogously to the gays marrying official in the municipality, walking barely without wearing any clothes must be a right! But that right is morally and socially damaging. I compare gay like a man or woman walking barely in the street in the face of the public.

To me, I don’t complain on those already in the gay group. What I feel sorrow is on the religious people keeping silent even when gays are ordained as bishops (e.g. in USA) and those who are not in the gay group but support gayism