There was a time where it was encouraged to enter debate and discussion with opposing points of view. It encourage critical thinking, self reflection, perhaps understanding the other side somewhat better.
Now we’re not supposed to upset people with honestly held opinions. The acceptance of diversity of thought is no longer accepted.
Used to be said that sunlight was the best disinfectant.
Meaning that the airing of views, even the repugnant, reveals the repugnancy of those views.