Ah...rape and murder on not generally consensual acts. Personal life was a nice way of saying why do people care who sleeps with who...as long as it is adult and consensual. I hope that's more clear. If you are comparing rape and murder to being gay, then you forgot Pedro, sex with animals and necro....smile.
This is what you said: I cannot fathom why people even care what others do in their personal lives.
I care alot what others do, consensual or not, because, like it or not, all humans are inter-connected. The number one problem with society today is APATHY.