Attempts to reliably identify evil people or groups for attack --- are tragically simplistic and misguided! No good come from them! Such attempts augment: alienation, estrangement, annimosity, distrust, arrogance, self-righteousness, hubris, polarization, dichotomization, contentiousness, etc.
The roots of all evil are fed within dysfunctional-evil-RELATIONSHIPS. No good comes from labeling any isolated individuals or groups as being inherently evil or containing evil within them in isolation.
"Evil" is a word which points to dysfunctional RELATIONSHIPS characterized by: alienation, estrangement, annimosity, distrust, arrogance, self-righteousness, hubris, polarization, dichotomization, contentiousness, etc. All evil is rooted in such dysfunctional RELATIONSHIPS.
To do any good we need to recognize OUR RELATIONSHIPS which are dysfunctional --- and to focus upon healing OUR RELATIONSHIPS which are dysfunctional. We cannot heal other people's RELATIONSHIPS within which we are not participants; for such RELATIONSHIPS are not OURS! Such RELATIONSHIPS do not belong to US and so are NOT-OURS-TO-CHANGE. We have no power nor right to change any RELATIONSHIPS within which we are NOT significant participants.
When our creations of new RELATIONSHIPS and/or entry into existing RELATIONSHIPS entail demonstrations of: alienation, estrangement, annimosity, distrust, arrogance, self-righteousness, hubris, polarization, dichotomization, contentiousness, etc. --- we thereby AUGMENT EVIL RELATIONSHIPS that are OURS. We need to MITIGATE OUR RELATIONSHIPS through: repentance, humility, confessions, requests-for-forgiveness, honesty, openness, dialogue, hospitality, generosity, distributive-justice, cooperation, colaboration, grace, agape, and working as True-Lovers in the Ways-of-Shalom.