Fascinating.

How a dose of MDMA transformed a white supremacist

โ€œBrendan was once a leader in the US white nationalist movement. But when he took the drug MDMA in a scientific study, it would radically change his extremist beliefs โ€“ to the surprise of everyone involved.โ€

https://www.bbc.com/future/article/20230614-how-a-dose-of-mdma-transformed-a-white-supremacist

How a dose of MDMA transformed a white supremacist

Brendan was once a leader in the US white nationalist movement. But when he took the drug MDMA in a scientific study, it would radically change his extremist beliefs.

BBC
@WarnerCrocker
So we have to dump tons of the stuff in the drinking water reservoirs?

@nyrath @WarnerCrocker
Er... not sure if that's the takeaway.
The article made it seem like a double-edged sword. It could make a person care more about their in-group, but possibly also defend more adamantly against would-be out-group threats.

It sounds like a lot of variation from person to person. Possibly more effective in this case cause this guy happened to take it while he was already questioning things about himself. Even he admits it wasn't 100% effective.