the internet itself has probably been the biggest barrier lowering creation in the history of human civilizations.
people follow their interests and interests converge. subcultures form. who is who?
online, you choose freely.
Of course there’s dangers with this. There’s dangers walking down the street in your neighborhood. But as more and more get online, wagon circling is common and folks protect one another and teach each other safety.
No need to make a “personal responsibility” speech either.
Either you’ve been there, or not.