Always be wary of anyone who tells you to suppress instinctive visceral reactions to things.

If it makes you angry, that means your gut is telling you it's wrong, and providing you motivation to remediate.

Manipulators and cult leaders use the suppression of anger to direct your will towards sublimated, unconscious desires, that are probably in their interests and contrary to yours.

Hippy, New Ager cult drones are especially prone to this, and you can feel it in their presence, there is a reflexive self-suppression going on that makes their actions clumsy and artificial.

My instinct, when I see this shit, is to become MORE angry because if I don't direct that energy somewhere, it goes into the shadow and turns against me.