I mean every historical source is full of one sided propaganda.

Have you ever heard the phrase “history is written by winners”?

What have keep history alive is not Wikipedia. Is the fact that multiple people from multiple POV write things down and we can find and read multiple sources.

Don’t get me wrong, Wikipedia is great, but it’s not what keeps history more or less accurate. Take into account that Wikipedia is a sum up of other sources. In order to write to Wikipedia you must quote a primary source.

And AI really doesn’t have much to do with anything here.