I wouldn’t say that past generations wanted to be marketed to, it’s just that before the internet, marketing was the closest a customer could get to being spoken to by a brand.
And at some point in the history of marketing, I think companies used to see it that way too, marketing was a means of communicating with potential customers what your product offered. But as capitalism progressed, and media outlets expanded (print, radio, film, TV, etc.), honesty was optimized out in favor of “bamboozleism”.
It’s now easier than ever for a brand to have a direct, two-way conversation with their customers at any time, but marketers are still stuck in that 20th century mindset of “we just say whatever we want, and you just accept it”. The internet is in the process of popping that bubble.