One of the worst things that we've done as a society is push the idea that all viewpoints are valid and up for debate. This is legit why so many people think those bullshit jubilee debates are a form of education and not just a way to socially manipulate people into being open to fascism.
You cannot preach free speech and tolerance without also raising awareness of Popper's paradox of tolerance. https://en.wikipedia.org/wiki/Paradox_of_tolerance
en.wikipedia.org
Paradox of tolerance - Wikipedia