I think you might be assuming a lot there RT.
I think that cutting contact hurts the parents immensely.
I thin Cognito is right, they don't take you at all seriously. You are not eneitled to your opinion, you are not 'grown up enough' to have one, in their eyes
The parents do love their children Springydaffs is right here. I'm sure of this as the dynamics of abusive partners is the same. They think they love you, as they are supposed to, but why on earth would someone sit there and condone, accept and excuse the fact that their son threatened to KILL their DD?
Why are they acting as if nothing happened? Because, to them, nothing DID. Your DB is entitled to get away - apparently - with murder, you are not worth enough to save.
You ARE attributing emotions to these people that they do not have.
You are NOT wired like them, you are the odd one out. Your entire life you thought YOU were in the wrong. NEWSFLASH, you aren't, it's just that you were in the minority so THOUGHT they were all right and you were not.
You are a square peg to them, an anomaly. They don't really get you but that's OK to them, cos they don't really want to.
Ultimately cutting you off won't upset them from a missing you point of view, it will humiliate them to the outside world, they will splutter and rage at the thought of NOT having you hanging on their every word. They will squirm when anyone asks after you, cos they won't know a thing and they will run out of details to use to pretend they are not rejected by you.
They will fume, thinking that you have no right to be so rude to THEM, how dare you, how ungrateful, after everything they have done.... they will not see one second of the crap they have shovelled on to you.
Take note of springy's words, she's not looked back! It's little like ripping off a plaster, hurts at the time, but feels so much better once you have some fresh air on the wound.