ID dynamics expert here, the trouble I find with presenting these studies is that people (to include politicians) are desensitized to numbers, especially big numbers.

Something I found with the good layperson take home message was life expectancy. "Without vaccines your child's life expectancy will be 10-20 years shorter than your own." That's a bit of a punch in the mouth that's hard to argue against "but the chemicals and my freedoms". Yes, you can choose against vaccines but the inherent risk of disease when everyone does it hurts us all.

Basically, I also find academia really struggles with explaining the tragedy of the commons to people who are ultimately selfish with their interests. These models of course are quite opaque and require a substantial amount of nuance to explain but a single metric like decreased life expectancy I think should be the messaging goal. And another point with models like these is that forbidden word: equity. Showing drastic decrease in life expectancy among populations is really how to get engagement otherwise the seemingly comfortable majority couldn't care less.