So you're saying that in this example, even though you didn't own the private key, you do own the bitcoin? 

But if there is no way to enforce that ownership claim, what does it even mean? A court won't enforce it, the bitcoin network won't enforce it. Do you just track the utxo as it moves around and tell people that it's yours? 

 I probably don’t understand what You’re asking. It is meaningless to continue. We’re not standing on the same ground. 
I own MY #Bitcoin Everyone of them.
You, nor anyone else, can take them from me, other in some hypothetical and for me totally uninteresting scenario. 

 Sure, it's easier to just dismiss everyone as a communist rather than have a rational discussion around the ability to own information. 

 ERROR CORRECTION☝️*”CAN’T take them from me”