I agree the article isn't well written but I do share some of the author's concerns about the right to free speech vs. the cultural norms of public discourse, private disagreements among friends, friendly debates, etc.

I read the book The Coddling of the American Mind [1] a while back and think I can sum it up with that modern American equate disagreeing with someone opinions as a personal attack and that we need to avoid touchy subject for the sake of tolerance.

[1] https://www.amazon.com/Coddling-American-Mind-Intentions-Gen...