> The US has a lot of national parks, national wilderness, and BLM land that is completely open to the public.

Many concerts, shooting ranges, and other loud activities occur in two of the three categories you mention above. All a lot louder than multiple hikers with Bluetooth speakers.

I won't even get into ATVs.

(Not disagreeing with your intent - merely pointing out to other readers of the various socially acceptable uses in these lands).