Stop arguing with APC people.
Stop making moral appeals and arguments.
Learn to recognize when people have calmly decided to embrace Evil and work out what adjustments you have to make.
Calm down and ruthlessly make decisions on what you will do
There's nothing you can tell these people.
They have had a long internal conversation and coldbloodedly made a decision.
They have made their peace with whatever this thing costs you and your families.
Calm down and stop being emotional.
Isolate them.
The first thing you do in this situation is ISOLATE the enemy.
They feed on your pain. Take a step back so you can think.
There are different ways to inflict deep-seated damage. Calm down.
Stop "expressing" yourself. You are just imbibing weakness. Stop It.
Your "Righteous Anger" is feeding your Enemy.
Gather your Emotions and let them build and mature before you release them.