When we realize such people as such, are human nature is to feel bad for them; I'm glad I'm not like that, and I'm glad that I'm able enough to see that their behavior is bad. When we feel bad for them, we start to normalize their behavior and, whether consciously or unconsciously, we justify their bad behavior; "oh it's just Jimmy being Jimmy" "nothing I can do about it, it's the way they are"...but you CAN'T forget that it is TOXIC and you SHOULD separate from this person. I'm not saying separation is what you must do, but it is what you should do for your own mental, emotional, and even physical health (stress=impacts physical health ex if prolonged may lead to a heart attack). No facts, perhaps a hypothesis, but just what is best from what I have seen and observed and judged and evaluated.