Your definition of psychic vampirism is new to me:

Psychic vampirism is a rampant, learned energetic phenomenon in our society (typically first taught by one's parents, subconsciously) in which one literally steals some life energy from another by purposely upsetting them to throw them off balance.

I think dissension is necessary and is not always wrong. Sometimes the small group of dissension recognizes something the whole has not yet. It is best to deal with dissension openly and directly before calling for media and legal action or demonstrations. I am glad you wrote this:

This notification, however, should be done with an intention of pure, unconditional love, without any blaming or projection.

I work in a socially emerging country with serious differences in worlds of thought by generation. This combined with a hierarchical structure of decision making comes to unspoken disagreements. As an American I am in the middle. I have seen this dissension in the public school, Ministry of Education and in the church. As a foreigner I try not to interfere but to provide an environment for people to talk openly until they can see why the community acts a certain way. So far I have not seen few permanent resolution. Mostly avoidance or compromise. This is because of the "beliefs" as you discussed in the first two paragraphs including value systems of individuals.

The last place of dissension and where it hurts the most is in the family. In my experience it is better to lose temporarily and win long term. My wife and I are from two completely different mind sets as probably every man and woman. I can't expect her to understand why I love some of the things about crypto currency and decentralization and public media presence and some of my theories of education clash with her. It's like we hit a brick wall. If it is not urgent then I wait. Some day later she understands just like that. In the meantime I need patience and love.