on the subject of using accusations of anti-Semitism to stifle political debate inside the labour party, I'd recommend watching "the lobby" episode 3 [1]. Ironically the documentary itself was accused of antisemitism but Ofcom ruled against it. [2]

[1] - https://youtu.be/L3dn-VV3czc

[2] - https://www.aljazeera.com/news/2017/10/9/ofcom-dismisses-com...