Dude. The only difference between a normal headphone with a 3.5mm jack and a "usb" headphone is that the latter needs to have its own dac/amp. Guess what? YOUR PHONE ALREADY HAS THAT. Usb headphones are more complex, more expensive and not guaranteed to work indefinitely.
Removing the jack makes 0 sense.
Moondrop Aria. $70/80, comes with a carrying case + detachable cable.
If all of your wired iems broke, you either broke them yourself or were buying very crappy iems.