In the context of what this most recent discussion is seemingly about: is there a notable uptick in the advocation and/or sympathy for free speech restrictions compared to past generations of university students, primarily coming from the left, I am not sure what you think you are providing evidence of here?
For this to be adequetely meaningful, it would need to include some historical anchor we could weigh the present trend against. And it would need to siphon out, stratify, and organize the context in which these events are happening. So as to make a more informed value judgement. As is, your "cases" link is throwing into the same basket a college Republican group trying to ban a science teacher for saying in class that people that vote for Republicans are tacitly supporting murder and dislocation by way of denying climate change(like happened at my school) with left-wing protestors trying to ban Milo from speaking. I guess it could be evidence toward it's present state of being on a broad, indiscriminate level, but we both know you see the causation and problem more specific. And have long argued to it being a troubling trend predominately amongst the left.
However, as evidence for consideration, if you look at a wide collection of surveys across age and political spectrum, like two recent YouGov/Economist polls and a Pew Survey, it does seem to undercut the current Peterson style thesis that there is something uniquely wrong with the free speech values of the children(and more specifically the dirty millennial leftist, Marxist post-modernists).
Almost across the board, you tend to find a wider range and stronger advocation for speech restriction amongst older, Republican people surveyed than younger, liberal participants. And greater advocacy for a wider range of restrictions amongst Republicans than Democrats. However, the inflection points differ. The right tends to favor bans on trans, gay, non-Christian speech in institutions and restricting their allowance in society. Followed up closely by things like banning flag burning or protesting the National Anthem. While the left is slightly more willing to ban and restrict issues stemming from prejudice. However, the aggregate percentage of those groups advocating given restrictions comes out higher and wider on the older, right leaning participants. Basically the one place that the left seems to take a harder line on free speech restrictions are when it comes to issues of prejudice. Which has always made me suspicious about why so many like Peterson only seem to give a shit about that particular inflection point of anti-prejudice and not the still much larger issue of people advocating restrictions on speech
because of their prejudice???
Some charts to illustrate some of the above:
spoiler (click to show/hide)
I've asked this before, but why should I have a greater outsized concern about liberals on campus over-correcting for real issues of prejudice in society and our economic systems than actual Republicans and older conservatives and their much larger and broader assaults on speech? Like trying to jail teachers that protest their wages or work conditions? Want to pressure companies to fire people that protest racism by way of the national anthem? Or legislate a ban on certain civic protests entirely? Ban political dissent they don't like? De-humanize and suppress immigrants, religious minorities, and POC for political gain and personal desire? Ban LGBTQ literature in libraries? Restrict LGBTQ rights more generally? Whom actively vote for autocratic candidates and are consistently supporting any and all underhanded ways to undermine and corrupt core democratic institutions and processes from the national level down to the student government level(as El Babua alluded to)? Especially the core Trumpian white, non-college graduate?
It is really hard to take seriously someone that wants to tell me that the real nexus of problems in this country is 19 year old college liberals getting too worked up on social media and campuses over racism when you step back and take in any sort of objective perspective on free speech issues in this country.