Now, it's our job, when we see the arc not bending the right way (or fast enough) to do something, but I think to avoid allowing the arc to have levers is not doing ourselves any favors.
And with all the talk of cancel culture (not government action, but just all private citizen action), I've actually seen very few examples of it resulting in something that I consider unacceptable. Note, I'd consider physical threats outside the bounds of cancel culture -- those are just physical threats.