An interesting deep dive on one component of hideous new development: https://marker.medium.com/why-everywhere-looks-the-same-2489...
It doesn't help that architecture (and most other artistic fields) is currently dominated by the belief that beauty is almost completely subjective. Under that philosophy, why not just design the thing that's going to at least win some awards for being "innovative" or "striking?" (These are almost always euphemisms for "offensive" but for people who think offense is a purely subjective experience)