You admitted they have a mental disorder. Such people have no “right” to own, much less, carry firearms.
Unless they have been adjudicated as insane they have as much right to firearms as anyone. Having a mental disorder is not the same as being dangerous to themselves and others.
Back in the sixties I was an attendant in a mental institution evenings while in college days. There were some seriously sick people there. Many looked like the lunatics who shot up that Colorado movie theater, shot those children in sandy hook and shot gabby Gifford. Back then if you looked or acted like these clowns they locked you up. Then the left decided that they could tear down society better by letting the violently ill roam the streets.
Quietly gays, during that same time frame went about their lives in the closet, the majority not bothering anyone. Yes there are homo pedophiles. There are also Hetero pedophiles.
I agree people who act out their psychotic nature belonged locked up and away from Firearms. I disagree that faggotry should be necessarily included in that group.