Did you show them this video?

https://media.gab.com/system/media_attachments/files/064/464/071/original/e9e8e1849b1c4e85.mp4

Or this video about media infiltration:

https://www.dailymotion.com/video/x2pzqf2?syndication=273844

https://en.wikipedia.org/wiki/Operation_Mockingbird

Show them these, and then ask them why they believe government propaganda is legitimate news.

Do NOT let them off the hook to answer that question. They will try to weasle out of it, but ask them: WHY DO YOU BELIEVE GOVERNMENT PROPAGANDA?

Do not accept a non-answer. Even if they change the subject, it will make them think (later).

Did you show them this video?

https://media.gab.com/system/media_attachments/files/064/464/071/original/e9e8e1849b1c4e85.mp4

Or this video about media infiltration:

https://www.dailymotion.com/video/x2pzqf2?syndication=273844

https://en.wikipedia.org/wiki/Operation_Mockingbird

Show them these, and then ask them why they believe government propaganda is legitimate news.