SOL, I apologize that I have not read each entry in this thread. I have skimmed, and picked up a few things here and there. This topic is personal to me as I had to deal with irrational core beliefs regarding evil.
IMHO, Evil = Extreme Selfishness
That's it. Evil is not other worldly. There are extremely selfish people. I have been extremely selfish before. I'm not proud of it. But, now that I understand it, I can accept it. I can forgive myself, and I can recognize it before I act on it again.
Abusers are extremely selfish and they are not trying to change it. They either enjoy it and revel in it, or prefer it to the alternative; which is sharing/caring/empathizing, or simply not getting what they want.
There's no need to fear being evil, since it is the logical affect of a choice you make. If you don't want to be evil, then choose to think of others when considering your options in any given decision.
Extreme Selfishness varies from: choosing to do something for gain without any regard for how it hurts someone else... to enjoying the fact that it hurts someone else.
Extreme Selfishness is not self-preserving. It is not being confused and lashing out <-- that, is being afraid.
The best thing you can do for yourself is to become more clear on what is real and possible vs. what is not real and not possible. By doing that, you will decrease the fear you feel and increase your ability to control your symptoms (panic attacks) by using logic to calm your fears.
As I said, I did have to confront my childhood developed core beliefs which were pretty firmly leaning toward supernatural spirituality of all kinds. Once I threw off my belief in being controlled by evil, then I began to have more control over my own thoughts. Some thoughts are just thoughts, your mind contrives them because you expose yourself to the possibilities by watching the news, or horror movies, or listening to gossip about the latest shocking tragedy, etc... these things can not completely be avoided. My mind will latch onto some of the worst of the world around us because it is AFRAID. Not evil. Afraid.
Bottom line, you are not part evil. You are making some selfish choices that are instinctually self preserving, but which are actually destroying your life. You need logic, and courage. Life can be frightening, and it's funny how heroically rescuing someone might be easier than trusting a friend while you're triggered. Fight the fear with logic, and learn to trust with logic, and change your unhelpful thoughts (see my bookmarks for that one). I hope this is helpful to you in some way.