The change and adaptations have to be moderated and applied in diverse amounts. No single strategy or philosophy is perfect, but we shouldn't allow a few that are short term beneficial to someone to overly dominate and quash the rest.
It is the reason for freedom of speech and other hard won modern freedoms.
This includes allegedly noxious viewpoints. If anything, they serve as a vaccine and a reminder.
(Until the society can remember and recall them in detail at will. Probably not in our lifetimes.)