I've seen this idea pushed a ton recently, especially over on /r/ukpolitics and it seems like nonsense.

I think the idea stems from the way the Graun has opened up it's 'Comment is Free' section which has lead to quite a few low quality opinion pieces particularly 'SJW' esq ones.

The actual reporting from the Gruan is still good quality in my opinion, certainly head and shoulders above the DMs. And whilst the Graun has its left bias it, quite rightly, hasn't been kind to the current Labour party.

I think that's exactly it, and those are certainly what I see filtering into peoples' social media posts, and many seem at least as toxic as the average Daily Mail piece.