Nitpick: Sanger is not part of Wikipedia or the WMF as far as I know.
> t's not even just political content, it's getting to the point where history is being actively re-written and re-interpreted to match a radical narrative.
Mind giving some examples?
> In some sort of temporal example of humour, I've gone back to recommending people use Britannica as a starting point and for surface level reading.
In what way could Britannica possibly be better than Wikipedia. It is usually based on a single viewpoint, instead of Wikipedia's thousands.