How about we acknowledge that if the future has us all living in tiny boxes stacked upon each other, that those boxes need to be built with a standard for noise blocking between neighbors. New constructions in my neighborhood are all built with solid concrete between floors, but they are also extremely expensive. This is another example society valuing rent-gathering and wealth-attaining over everyday quality of life that pits the serfs against each other to fight over scraps.
I'm a known neighbor-noise-hater, but I have trouble blaming my neighbors (I did confront one, but only because I was new-baby-sleep-deprived), they're just trying to unfold their futon in their over-packed one bedroom apartments an hour after I go to bed and an hour before I wake up in the morning (2 out of the four of my wall-sharing neighbors have to convert various rooms daily just to live)
I would love to decree things like bans against subwoofers of certain power levels in apartment buildings, but that's impossible to enforce without truly horrible consequences. The real answer is safe parks for kids to run and bounce balls in, and walls, floors and ceilings that preserve a level of privacy and peace we all deserve.