https://en.wikipedia.org/wiki/Wikipedia:Database_download
I can understand if this is just too much effort to put into an online discussion though, I probably wouldn't bother myself.
And yeah there have been lots of scandals with Wikipedia. This one was pretty infamous:
https://www.theguardian.com/uk-news/2020/aug/26/shock-an-aw-...
Ironically I think your attitude probably protects Wikipedia quite a bit, and from that perspective I'd like to see more of it. The less people see it as a good source of information, the less incentive there is for all of the agenda-pushing you've described (which also definitely happens).
I still think the bulk of it is pretty decent though, on non/less-polarizing subjects, which describes most of IMO.
My main issue is that most articles are an inch deep. I find myself using textbooks and journal articles more often these days, while sailing the open seas as this would otherwise be cost prohibitive.