Read it and weep. Within two words of the article you find “hard-left”, the most ambiguous and disingenuous of phrases. At least “loony-left” is clearly derogatory. “Hard-left” is also derogatory but tries to pose as a legitimate phrase, an actual political position.
Accusations of entryism upset me greatly. Entryism is a communist tactic akin to accelerationism and generally an anti-democratic position. The vast, vast majority of Momentum members are DEMOCRATS! They are not ‘entryists’. They want Corbyn to win, and there is nothing sinister about that.
This is a horrendously biased article, even for the Guardian.