Over the past decade or so, it has become increasingly common for unanounced, "wild" protests favoring various left-wing causes to disrupt teaching and the academic exchange of ideas, in many cases with violence or brazen coercion - all while university leadership looks the other way and refuses to restore order, either because they're afraid of the mob, or because they actually agree with them.
They destroyed higher education across the West.
That is an unforgivable crime and this has deep consequences that we will feel in the coming decades. They ruined the education of an entire generation.