You can begin by always assuming no matter what. There's always more to the story. It's never black and white. Or grey for that matter.

Unless I'm physically there at the time these things happen all we can do is build a good enough idea of how things played out by looking at all the information available.

People in general tend to hyper focus on things sometimes not even relevant at all to the things they want to know and miss the point entirely.

These sites and propaganda exploit our laziness towards due diligence. And it also doesn't help that the world isnt particularly honest with themselves or tech illiterate.