I think it is uncalled for to suggest that the only people who care about seeing diversity and representation are "shored up in politics" to the point of being a "lost cause", and that the only possible answer to a desire for diversity and representation is tokenistic lip service (which is how I am charitably interpreting what you mean when you say "agenda driven media").

Unthinking tokenism for diversity points and substituting the presence of representation for an actual compelling plot or characterization IS a problem that crops up a lot in subpar modern media. It's become part of the wider trend of publishers and producers and such going for formulaic trash that meets algorithms to be most likely to rake in viewers and money, rather than promoting art that is actually trying to say or convey something (even just something so simple as "an interesting story that doesn't read like a barely fleshed out Standard Narrative Arc from a how-to book on writing").

But that isn't the same as representation and diversity - and wanting to see that representation and diversity - being inherently tokenistic or money-grabbing. I, and I'm sure many other people who appreciate diversity in stories am as tired as anyone else of seeing books and media promoted on their supposed diversity points alone, without any attention paid to the actual plot or characterization. People who belong to minority groups shouldn't be reduced to stereotypical Representations of That Group, we are all whole people who deserve to be acknowledged and presented as such.

I also really fucking hate the way booktwitter, which is full of the most idiotic brownie-points chasing assholes with only the most surface level understanding of social justice or activism, has impacted the publishing industry and the way people approach stories. As if everything is down to problematic vs wholesome, and any exploration of nuance or complexity or anything is "problematic" and deserves to be canceled. I loathe that shit.