> Is it radicalised to want even a basic premise of neutrality in an encyclopedia?
Facts are not neutral or "balanced".
And your whole phrasing smells of someone who doesn't want to be challenged with facts which are against you worldview, which is pretty much against the whole purpose of Wikipedia.
> Despite not being particularly political, even I raise an eyebrow when an article opens with "____ is a <negative label>, <negative label>, <negative label> known for <controversial statement>"
Without giving the actual example, there seems nothing wrong with this in general. Could be important, could be overrated. But at least I assume it's true, because wrong claims would be a valid problem.