Sure, but then the same could be applied for anything like big sporting events, concerts, etc.... I guess the question is what negative externalities of these types of situations are we willing to tolerate? (not "accept", but tolerate... obviously people committing property crimes should be prosecuted)
It sort of goes to the question of what negative externalities are we willing to tolerate for certain freedoms? For instance, I think it's reasonable to assume that a robust gun rights regime will sort of inevitably produce more gun violence. A system like Nostr that is highly censorship-resistant will probably allow for the greater propagation of "bad content," depending on your perspective (hate speech, CSAM, etc).
I think the clear-headed pro-freedom argument is that yes, these negative externalities exist, and we need to work to mitigate their harm to the greatest extent possible, while understanding that the freedom gained by society outweighs those costs.