The pollution analogy might be useful. Specifically: "The solution to pollution is dilution". Now, that mantra has been mostly rejected for environmental pollu

The pollution analogy might be useful. Specifically: "The solution to pollution is dilution". Now, that mantra has been mostly rejected for environmental pollution because there's a far better option: Gather the pollutants, process/eliminate them, and work to eliminate the sources. Back in our context, hopefully the elimination of people with unsavoury viewpoints is not on the table. We must fundamentally agree that humans being what they are, free thought being what it is, these ideas will never be 'gone'. So accepting that, perhaps "the solution to pollution is dilution" applies. Apply it and we quickly see how censorship will be counter-productive - Those people, viewpoints and opinions don't go away and instead they concentrate in localized 'hot spots' (or cesspools), where they actually do far more intense and immediate damage. Obvious example: 4chan/8ch. Less obvious example: People's minds. By avoiding chasing these things into the shadows they remain open to challenge. While the mind of the person you're challenging might not be changed, when its out in the open all others that come past and read that interaction get to judge it on it's merits and make their own judgement call. Without that, folks end up in echo chambers. When newcomers get to those places, they are not exposed to a balance of viewpoints and the opinions they themselves form will tend to conform to the leanings of the echo chamber where they spend their time.