The history and experiences of marginalized groups is so easily twisted, especially in an environment where people will just say things with no evidence (or even in direct conflict with known evidence!) because they'd rather believe a lie that continues the narrative they want to push than accept facts.
While this is a personal site, and I am only simply a person and cannot be removed from the societal biases that have been ingrained in me from birth, the biggest thing I ask from you, dear reader, is to read primary documents and make your own decisions. To truly look at what other people have said, are saying, and try to understand where they're coming from. Sometimes, it really is just complete bullshit that should be immediately discarded. But, sometimes, they can offer a helpful piece of the puzzle of life and the human experience that you've been missing... No one person can see the entirety of the world, but literature, a variety of literature from diverse authors, is the closest way to get there, I think.
That all said... The issue of primary sources being easily damaged or unknown to the general public still remains. People have always written and spoken about their experiences, but it's often not that widespread.
Imagine this: you go to a lecture in a packed auditorium. The speaker's words are so powerful, heartfelt, but they slip away from you in an instant. In a year, will you remember what was said? What if you write a journal entry that night? What if you record it? This is still not a perfect solution, of course: journals can be lost and video files can be corrupted, just to name a few. But, still, having tangible proof of these events can help preserve these moments for future generations, who weren't present at the actual event.
In summary... information should remain accessible, in many forms! Here are (what will eventually be!) some resources to help you create your own archive of what's important to you.