It is always in the favor of states to not only claim to support their people, and even represent them, but to encapsulate their identity. Authoritarian after authoritarian has learned this.
Criticize the CCP , you’re a sinophobe. Criticize the Iranian or Saudi governmenta and you are demonstrating Islamophobia and antiarabic prejudice. Now with Israel. Plenty have done and it damn works, that’s the worst part.
Molly/ Ecstasy
Here is a story of a white supremacist switching views after taking it.
https://www.vice.com/en/article/a-white-nationalist-took-mdma-for-a-drug-study-and-renounced-his-racist-views/
Here is an article on how mdma can change PTSD by opening up the brain by rewriting. This is obviously for depression and PTSD, but recognize why it works for these other things. It opens up the brain to becoming reactive to different stimuli after having kept the same pathways for so long.
I think of course, community is the best long term answer. Education is hard for adults but having lived narratives around you showing you a better way is FAR more effective than just some facts thrown at them.
These people need to be taken out of their echo chamber and if possible, given a new vision