"training on our data" has turned into a catchphrase like "taking our guns" or "banning our books" - dumb propaganda for anti-AI crowd to enrage people. Whether personalized AI-based experience is useful can be debated but everything has to be twisted into culture wars, thats just how media is nowadays
Privacy is not a culture war issue. Not wanting massive amounts of personal data hoovered up to train an AI for Google is reasonable. Arguing against this kind of invasion of privacy is not "dumb propaganda".