That poetry is dead isn't a new opinion. Matthew Walther has specific ideas about what killed it.
"We stopped writing good poetry because we are now
incapable of doing so. ... [T]he very conditions of modern life ... have demystified and alienated us from the natural world. ... [T]he relationship between nature and poetry is basic and elemental."
"Eliot ... remade all of English poetry ... The clipped syntax, jagged lines, the fixation on ordinary, even banal objects and actions, the wry, world-weary narratorial voice: This is the default register of most poetry written in the past half century ... Eliot finished poetry off."
"Among the conditions for [poetry's] return would be, I suspect, the end of the internet and many other things that most of us value far more than we do poetry."
https://www.nytimes.com/2022/12/29/o...nd-poetry.html