all of the time, all of them, all the time, always happens, always like, happens every time, completely, no one ever, nobody ever, every single one of them, every single one of you, I always, you always, he always, she always, they always, I am always, you are always, he is always, she is always, they are always
It's not always overgeneralizing to use one of these. "Every single one of them wore black" is (potentially) completely factual. A large increase in their use in books, however suggests that authors are overgeneralizing more than they did previously.
Phrase list: https://www.pnas.org/content/pnas/suppl/2021/07/22/210206111...