> It's one of the larger instances but the top heaviest constitute the majority by far and they all enshrine these policies.
So can you provide any evidence? Name this instance?
> both sides of the political aisle have become hives of extremism
It's laughable. Look at the people in power. What progressive is in any major office: Look at the President, the Minority Leader of the House, the Majority Leader of the Senate, Democratic Governors, etc. etc. All are mainstream Dems, hardly a progressive to be seen. Meanwhile, a majority of the GOP in Washington voted to overturn democracy and as sided with the rioters who attempted a coup.
> the left, particularly, has become the thing it once hated, an instrument of control in the service of the few
What has the left controlled? The right wing has used governmet power to ban books, educational topics, political freedom for teachers, criminalized gender choices, protests, etc. etc. Even in colleges, the right has shut down dissent, including among faculty (e.g., at UNC, in Florida, Harvard, Yale, etc.). The right is trying to eliminate tenure and academic freedom.
The left is trying to break the control of a few. Whether you like their tactics or not, they are trying to give power to minorities and other vulnerable people.