[quote=paramount]Being gay should not define a special class of citizens or special status; and gays should not be recognized in a public school curriculum in the way that is being proposed.
Being gay is a behavior, not a social class.[/quote]
Social class is defined by any designator (eg: hair color, skin color, sexual behavior, income, alcohol consumption) that can be used to draw a circle around a group.
People who have same-sex relations may or may not be gay (eg: prison) but the point is that behavior is a perfectly acceptable designator of social class.
That is why we have a word for it.
That is why it is a designated “protected social class” in the state code.
By your definition, religion would also be likewise non-recognized.