No one listens to music with their cables 'unplugged'. Since you don't believe in 'cable makes a difference' there is not much to discuss or debate here.
Ethernet as a protocol and cable is the only cable in all of audiophiledom that I know of that you can unplug and you will still get playback.
That you don't get the significance of this and unable to answer that age old simple question: What happens to the SQ when the cable is removed and the audio keeps playing?
Even If I shoot a video with A/B test and post it on YouTube, i highly doubt either you or anyone for that matter can discern 'SQ' between different cables.What I posted was for proof of concept Post your own rebuttal video and see how many comments you get ;-)
Is this simple enough for you to understand?
BTW, how many comments did you receive on your YouTube video :-)