The first thing to show them is the wikipedia article on north korea media coverage.

It should cause a bit of a cognitive dissonance.

https://en.m.wikipedia.org/wiki/Disinformation_in_media_coverage_of_North_Korea

Here, I even went fishing for the link to help.

Then, there are a lot of tourists who took pictures of north Korea and brought them back.

They are telling.

https://www.ericlafforgue.com/gallery/Countries/North%20Korea

I particularly like eric lafforgue because he took illegal pictures and was simply banned, destroying the myth of getting killed/maimed/whatevered from disrespecting the rules.

The last step is to show theses articlea from what happens daily in South Korea, which most people think is an actual country and not an american subsidiary.

https://en.m.wikipedia.org/wiki/Poverty_in_South_Korea

https://en.m.wikipedia.org/wiki/Economic_inequality_in_South_Korea

And then compare Chaebols with the Kims

https://en.m.wikipedia.org/wiki/Chaebol

The conclusion after that is that both Korea are under duress, for completly different reasons.

One is limited in ressources and isolated, with a lot of poweful enemies and few allies.

The other is a feodal state controlled by corporatism and outside interests....

The one piece of advice that always holds up when trying to inform and convert those around us is simply to hit them where they live. AES just isn't that, not to mention they've probably been propagandised so much since birth they think China, DPR Korea etc are hellholes in the same way they think the earth revolves around the sun. It takes a lot of effort on their part to realise just because the circle peg goes in the square hole doesn't mean that's where it belongs.

I sympathise with you. I've got old school militant socialists spewing BBC garbage about AES. Best I've managed with those old farts is to get them to think we agreed on a middle ground when they just misunderstood (even plain old misheard) something I said and call it a day. It's quite exhausting.