For most of human history, humans designed and built time-tested settlements, buildings, and transportation that were loved and persisted for countless generations.
Starting in the 20th century, this all changed for the worse due to the emergence of the motor vehicle and the modernist architectural paradigm.
I write in detail about how modernist architecture has destroyed the lovability of our cities.
Neither the motorizing or modernism innovations are capable of leaving us with human-centered places that are financially sustainable, loved, human-scaled, or timeless. Instead, the buildings, communities, and transportation these two tragic paradigms have left us and future generations are unlovable, despised, oversized, unaffordable, and ugly. So much so that we and future generations are eager to demolish such things the moment they are built (or -- as led by an enraged mob of NIMBYs -- stop them from being built the moment they are erected).