There seems to be a generational divide on this topic. A lot of younger people seem to be fine with restrictions on free speech, often under the guise of various progressive causes
It feels to me that the Overton window shifted rapidly (and arguably inverted) in the late 2010s. I remember this speech being posted and praised in forums and among people who would now consider it a harmful "dogwhistle". And I concur with the generational divide. As a mid-90s birth I've often found myself defending these principles towards younger people, and have done so by pointing out how the left used to suppor…
I agree (as a person who didn't use to feel embarrassed to describe himself as a man of the left), though I think there was a similar move from class to identity politics during the same period.
Much of the moral decline of the left of the recent period can probably be traced to (white) middle class dominance through academia and social media, which has been scaled by the web and led by the young who dominate the demographic in both cases.