Democracy is mob rule, so of course cancel culture is part of democracy.
Democracy is an idealized form of government that a number of governments borrow from.
Cancel Culture otoh is a witch hunt.
Heck, Cancel Culture isn’t even shunning, because with shunning all you have to do is to go to a different church and the wider society is still available for working, buying, selling, etc.
It’s a little disturbing, btw, that lefties are trying to double-down on running society like a church!