Hate and shame feeds reactionary behavior and is counter productive. If you disagree with someone, empathize with them as a human being and explain how their behavior is hurting others
It’s also worth noting that these are mild measures compared to the other stick societies like to use, criminal law. If people felt confident that rapists were prosecuted not just in cases where their victims number in the dozens (Weinstein, Crosby), they wouldn’t feel the need to use social and economic pressure.
It's also nothing new: "In Ancient Greece the Athenians had a procedure known as "ostracism" in which all citizens could write a person's name on a shard of broken pottery (called ostraka) and place it in a large container in a public place. If an individual's name was written a sufficient number of times, he was "ostracized"—banished from the city for ten years. This was normally practiced against individuals who had behaved in some way that offended the community."
That same mechanism amplified by social media is no longer as adaptive. It's natural and fairly reasonable to snap at someone if they are rude to you. But if you jam a bullhorn in their face and yell into that, it's no longer appropriate. The emotion and impulse are the same, but the technology changes the manifestation of them.
And while he sees that it’s impossible to stop every single rapist, he’s willing to settle for victims just not bothering him with it.