It's the 'authenticity' issue of generative AI tat troubles me rather than the content of the viewpoints.
If these same ideas were expressed by Vtubers (virtual youtubers, anime-like filters for people who want to do to-camera video but are shy or protective of their privacy), it would not be troubling, as everyone understands that fictionalized characters are a form of puppetry an can focus on the content of the argument.
But using generative video to simulate ordinary people expressing those ideas is a way of hijacking people's neural responses. Just pick the demographic you wish to micro-target (young/middle/old, working/middle/upper class, etc. etc. etc.) and generate attractive-looking exemplars for messages you want to promote and ugly-looking exemplars for those you wish to discredit.
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