Notably, I also found out a few other dynamics:
Personification trumps vilification and ridicule.
Let's take something really ugly, like abortion. People will post up the ugly pictures and they will post up their favorite slogans, and they will denigrate opponents with brutalities like, "baby killer"
This kind of noise completely destroys rational advocacy / debate on the topic, which is why religion and politics are often discouraged in technical and other discussion venues.
Now, personify it. I took a story from Brazil where a 9 year old girl was raped by her father, her mother wanted to get an abortion for her, and the church, state, father and others wanted to deny the girl that.
Instead of the usual advocacy path, I asked people what they personally would say to the little girl who doesn't want to carry a pregnancy.
This required they simulate the scenario, and express their thoughts as actions, or virtual actions in this case, rather than just pull out their favorite "pokemon battle card" type sayings...
Amazingly, the dialog split into two camps!
The majority of participants answered honestly, and were quite disturbed at the experience. The majority said they would not tell the little girl no, regardless of their personal beliefs / preferences. It was the human thing to do.
For those ideologues who were being absolutist about it, they would not answer, because they would reveal cracks in their black and white vision of things, so they vilified instead! And it was intense.
The rest of the group turned on them, and they got shouted down. Secondly, that experience changed the group dynamics. Abortion noise is no longer tolerated like it was before. It's potency as a distraction is now much less in that venue. The personification really impacted people.
Edit: One absolutist actually said the right answer was to cut the girl open after she has carried the baby far enough along to be viable. The group response to this was harsh, and they were banned.
I personally took a lot of heat for that disturbing approach and had to apologize for the rough dialog. And I did, citing my interest in finding out what trumps what. This was well received, but the whole thing was expensive emotionally.
Honestly, this is one of the few times I've ever seen the noise machine beat back into submission like that.
Lesson there somewhere.
(Yes, this is an area of interest of mine, and I've been running little experiments for some time as the problem identified in this thread is growing rapidly and we have few answers. I find the use of data intriguing, and I plan to do some reading to better understand what other options we may have.)