I've never seen a video of extractions either... Saw plenty of videos of root canals though in my endo class-- The department chair makes videos of the endo cases he does with his surgical microscope (it has the optics built in for making videos). But no, they are not available to the public.
Why do you need to see videos? Aren't you getting to see those procedures live these days while you shadow?
I love doing extractions... When a tooth isn't a "crumbly". 😀