"SW: All gay people are self-destructive??"
Pretty standard boilerplate there, "gay people" were never defined in the first place but given that the issue was teenagers "coming out" and self-defining as gay it could easily be argued that all such acts are self-destructive because the Self is being said to be defined by disordered sexual desires which can be known to be destructive. As I began to note there, there are various lines of empirical evidence that indicate that such an act is inherently self-destructive in a psychological way to the Self. It is also possible to go into philosophic reasoning as to why the metaphysical Self is being destroyed by physical appetites, as Socrates argued if one decides to be defined by or ruled by their appetites then the true Self can actually become a slave to its own appetites.
"Nice. Equating being gay with robbery, drug use, murder and rape.
Unreal."This is a denial of logical argument and a shift to emotional appeal. Not that there's anything wrong with emotional appeals, for the nicety of it! "You're a Big Meanie but I'm nice." is also fun. But back to basic logic: IF people choose behaviors that others find objectionable THEN an argument that is structured around the notion that people would not choose a behavior that people generally find objectionable is invalid.
I would play at being a Leftist more in order to play the Devil's advocate but it sometimes seems like there aren't enough Rightists to try to set things nice and straight.