Yea, if we could solve the "Obnoxious People" problem, it would solve a huge number of other problems. It's wild how much unpleasantness in the world boils down to a few anti-social, obnoxious, belligerent jerks ruining it for everyone.
From the "obnoxious person" perspective a few anti-social karens and kents should get with the times and stop ruining things for everyone. /s
It's all subjective. To me the idea of living in a city and hearing your pulse sounds like living in the rubber room of an asylum. Going to great lengths to do so is weird to me. I do however find the sound of engines and cars/planes pleasant so I'm probably lucky.
Yeah regular cars aren't a problem, but the kind of cars that are made to be intentionally loud, driven by people who take pleasure in driving them intentionally loudly is. Also blaaaasting some fucking song from your motorcycle at max volume just sitting at a stoplight outside my house is insane. Police sirens are also loud but the loud is a biproduct of the helping people so i can understand it. But holy shit I'm moving somewhere far away from intersections as soon as my lease is up.
Loud cars aren't /inherently/ the issue, it's that most of the people who want their car to be loud also have no concept of sound quality for their exhaust tone. Your typical 4-banger ecobox driven by a 19 year old stoner with an Aliexpress exhaust is not what people mean when they say that they like the sound of cars.
I like the sounds of cars, and cars can absolutely have their sound tuned to be pleasant. Famously, Lexus for the LFA had Yamaha (yes the piano people) tune the sound of the engine and exhaust, which sounds absolutely lovely. Even far more mundane vehicles (not supercars) can sound quite nice. For instance, while I generally don't think positively about Ford, this last generation of Mustang GT had a wonderful exhaust note from the factory with the cutouts open, it was throaty and loud without being full of drone.
Nobody wants to hear an Aliexpress exhaust or the kid with the beater BMW leaking oil that they put a popcorn tune on.
Motorcycles are a different story, but motorcycle riders are also a different sort of asshole.
For me it's certainly not about hearing my pulse or anything, it's about being able to function at all (sleep, even think).
And sure, cars and planes are the best case scenario! Oh how I wish cars and planes would crash in great numbers into every asshole blasting vaguely music-adjacent crap at 1 AM in my area. That would make for a beautiful soundscape.
Seriously though, it's just very individual. Unfortunate people who are sensitive to noises can't ever prove to a person who isn't that it's a huge problem causing actual suffering.
