There was a great Dilbert comic that said ~ ‘If marketing we’re only slightly more effective it would be illegal.’ I am aware of 1960’s era laws against sublimi

There was a great Dilbert comic that said ~ ‘If marketing we’re only slightly more effective it would be illegal.’ I am aware of 1960’s era laws against subliminal advertising. Are there any enforcible laws that limit how people are influenced with media and technology? More questions: If there is a technical definition of illegal influence, what would be the test of legality work? Would would enforce it? Who would be in violation of those laws today? Are any of the archaic laws about advertising/mind control that could be applied to today’s tech/media/security firms? Finally, in a hypothetical scenario where a state actor was able to influence the mentally fragile into turning into mass shooters, how would nations and individuals start to protect themselves against such attacks?