Recently, there's a cultural idiom that offense is completely in the eye of the beholder. What people often feel uncomfortable with is not banning hate speech, but reclassifying milder and milder forms of offense as intolerable. To extend your analogy, bumping into someone intentionally on the street makes you a jerk, but not criminally so. It's assault in only the loosest interpretation. People that have done this probably don't need to go to trial for it.
Recently, there's a cultural idiom that offense is completely in the eye of the beholder. What people often feel uncomfortable with is not banning hate speech, but reclassifying milder and milder forms of offense as intolerable. To extend your analogy, bumping into someone intentionally on the street makes you a jerk, but not criminally so. It's assault in only the loosest interpretation. People that have done this probably don't need to go to trial for it.