Executive Summary

Efilism is a philosophical movement, extending antinatalism, which sees sentient existence as inherently harmful and holds that avoiding procreation—and ultimately life itself—is ethically preferable. The 14 May 2025 attack on a Palm Springs fertility clinic, carried out by Guy Edward Bartkus, has been confirmed to have been driven by this philosophy. The available information on Efilism indicates that the Palm Springs bombing is more of an isolated case rather than the start of a sustained terrorist campaign.

Applying the Intent-Capability (I-C) threat assessment framework, we evaluate that the movement lacks the intent to commit violence and possesses limited capability, classifying it as a low-risk threat. That said, the potential for harm or recurrence remains, particularly for other lone-wolf actors who are believers in Efilism, like Bartkus. The enduring risk stems from its ideological nature and online milieu, which facilitates lone-wolf terrorism potential. While we assess the current overall risk from the movement as low, continued monitoring is essential to detect any signs of escalation.