Yes, you can respond to the flying monkey by saying, “I am not giving the silent treatment, I am going no contact for good.”
You will probably lose the relationship with the flying monkeys, too.
I’m sorry you are going through this. It’s so painful.
For me, I just distanced myself but did not completely break contact. I get upsetting phone calls every so often for now. I try to only say things that are civil and non inflammatory. When they start talking about subjects that upset me, although I asked them time and again not to, I say I have to go.