This quote from Mumsnet by RedToothBrush, considering a speech of Vaclev Havels's, chimes for me,
The thing is that the illiberal left is terrified of the unity of the liberal left and right so the only tool in the box they have is to try and tar the liberal left.
Cancel culture and political parties barring women / making it difficult to raise concerns from within their system is very much in line with the premise of the essay.
They go on to say that authoritarianism is the problem and I couldn't agree more.
Well, except to say that social media speech platforms becoming embedded in political culture is also a problem.