I’m surprised at how much I didn't like White Noise (1985). I’m not very familiar with DeLillo’s oeuvre––I liked Libra when I read it in high school––but a number of authors whose works I've come to love name him as a major influence. For one, David Foster Wallace, an all-time favorite, never failed to sing DeLillo’s praises whenever he was asked about his inspirations, citing this book in particular as the strongest one for . Yet left me cold, and I’ve been trying to figure out why.

My thoughts exactly. I loved Underworld, but White Noise did absolutely nothing for me.
One of my biggest criticisms of this novel is that if you're going to tell us the way we live sucks, you need to show us the alternative. Otherwise, you're just a whiner, no matter how much I might agree with you.
I feel this sentiment in my bones. But to give DeLillo some credit––and have the fire of a first reaction turn to the smolder of a second look––I wonder if a novel is a good way to present something like this. Do you know of any good examples where there were solutions posed? Ones that first come to mind are people like Rand, where the novels are kind of thinly veiled political philosophy works, but that's at the cost of the story and writing, IMO.
Does Underworld do this? I haven't read it, but I know it's also a "big issue" kind of novel. Perhaps all of DeLillo's works are, in some sense? It's hard to imagine something overtly social or political if Libra or White Noise are good representatives of his work, but I can see maturity or mastery leading to a better critique.