Building a widespread surveillance society and a centralized trove of user profile data, in a jurisdiction known for disregarding human rights to privacy (see FAA702 et c) and committing genocide when it suits their ends.

Building such a machine (Instagram, FB, WhatsApp, etc) poses a grave danger to a free society if misused, but Meta will not be the ones directly harmed when the databases they built are misused in bulk by the state to commit mass human rights violations or other atrocities.