I experienced this first-hand last weekend. My friend throws dinner parties where we discuss a different philosophical topic each time. The topic of last dinner party was sexual harassment and sexual agency. One person stormed off at the beginning because she got offended at the topic and ostensibly some mild language my friend used in a hypothetical situation. He was later crucified on social media.
When I was growing up, it was the right that constrained discussion while the left pushed boundaries. Now more often the left constrains speech. Rather than air positions in the marketplace of ideas, they would rather bully, shame and act offended at things they disagree with.