All of those articles are about economic performance before 2019, which was bad, but now we live in 2024, which is a different year where the economy is good. In fact it's as good as it's been in decades in the US. (Not so good in other countries partly because we caused inflation in their currencies.)
Note the media sector of the US economy is doing kind of badly and is mostly staffed by neurotic people who live in NYC, which means they tend to write negative articles no matter what.
Who told you that? My opinions are actually not that relevant here.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3529638/
https://www150.statcan.gc.ca/n1/pub/11-008-x/2007004/10311-e...
https://fortune.com/2023/01/12/millennials-broken-economy-de...
https://www.nytimes.com/2023/02/15/opinion/fertility-decline...
https://www.theatlantic.com/family/archive/2021/04/real-reas...