They allowed the family of an Israeli hostage on stage. Why not afford Palestinian Americans the same courtesy to have one of their own represented? Hell, they could have stood alongside the hostage’s family to show solidarity and hope for peace in the future.
The Uncommitted movement did everything the “right way” – they went through the official channels and offered the DNC a list of speakers and gave them permission to vet the speech however they wanted. But apparently that was still too big of an ask.
Ear buds or IEMs typically have a much higher sensitivity than full sized headphones. The higher the output power of your PC’s headphone out, the louder your earbuds will be at any given volume %.
There isn’t anyway around this except to manually change the volume whenever you use your earbuds.