I don't know how to speak to what someone has allowed to create the "reality" they believe they live in when it's abstracted away from primary sources. It would be one thing if he were citing different studies, different research, different legal records, but he's not. He's saying if a commenter he likes/trusts interprets something one way, it doesn't matter if there are facts that prove otherwise.
Ironically, our dad is the same way, just with the politically opposite set of non-primary sources my brother relies on, and it frustrates my brother to no end. But if the foundations of each of their worldviews are several levels abstracted from the original source material, how are they ever going to live in the same "reality"?
It was the first time in a long time that I've realized just how removed from what actually happens so many people are. So few people are actually even looking at primary sources anymore, and partially because they've become so hard to find beneath all the layers of commentary on them. But how are we ever supposed to talk about reality if we can't even agree what counts?