> That's not how heresy works. People don't point fingers at you and hiss "heretic!"

I mean...yes that's exactly what they did. Excommunication, run out of town, branded, marked, labeled in public, put in stocks, jailed, killed, yelled at, or just straight ostracized. These are all tactics that have been used in the past to label and punish heretical beliefs. They could absolutely still be used and, if you look at "cancel culture" in the right/wrong light, that's exactly what's still happening.