Mental illness or not, there's no excuse for these kinds of false accusations. It's certainly understandable given Freddie's condition. But us understanding why it happened doesn't ethically justify their actions, and it also doesn't relieve the perpetrators from the consequences of their actions.
"To those of you who are not people I harmed in my psychotic episode in August 2017… what is it you think I owe you?" - What I'd like is to simply not hear from this person in public again. I don't want them to have any sort of public social power, given their capability to totally ruin an innocent person's life.
Get a job, like most of the rest of us, and stop being a public figure. That's what I'd like