“The worm turns”: used to describe a person or group of people who have been treated badly for a long time suddenly become forceful and stop accepting a difficult situation. From https://dictionary.cambridge.org/dictionary/english/worm-turns.
I read yesterday that Trump has decided to start calling the Democrats — those of them who are behaving badly — ‘radical extremists’ during his 2024 campaign. That simple tactic will be very helpful, I think, in dispelling people's fears and confusion about what is going on, and has been going on, in our country — and ultimately generate useful optimism and enthusiasm in all of the various moderate forms of US Dems and non-Dems. See https://justthenews.com/politics-policy/all-things-trump/boomerang-trump-plots-turn-extremism-label-around-democrats-2024 for the article concerned.
PS: my more frequent readers might recognize that this is the same major theme that I explored very recently in: