I think there is a bit of this old man yelling at clouds going on here, but there have also been some serious studies showing that, in musical terms, the hits of the 2010s and 2020s are much less complex than those from the 1960s, 1970s or even 1980s. There is a dumbing down effect that is at play, and it isn't simply a case of "it was better in my day"...
What's sort of interesting or ironic is that there is also a real fear of being sued for copyright theft (often wrongly) and that would seem to me to call for more complex, not less complex, songs in order to demonstrate originality.