I take $100 out of an ATM in $20 bills. The ATM has recorded those serial numbers. I immediately get mugged. I identify the mugger to the police. The money is seized. The twenty dollar bills are identified as those I withdrew from the ATM. The mugger gets tried, convicted, goes to jail or gets counseling (liberals) and I get my $20 bills back.
But this isn't what you are demanding. The real example would be:
You take 5*$20 from the atm. Get mugged. Mugger exchanges the 5*$20 for a $100 bill at a store. Police catches the thief and tells you that after he gets convicted, you'll hopefully get $100 from him. You refuse this proposal and demand that the police go to the store get the five twenties that belong to you. If the store has given those twenties as change in the mean time, police must according to you find the customers and confiscate the twenties from them.
This is essentially what you are asking**. Does this still seem reasonable to you?
**) except you didn't really have 100$, you had an IOU for 100$ and still demand to get some specific twenties back (I'm not sure which twenties exactly)
Humm, mugger steals almost half a billion (US billion) dollars in btc. Not to inconvenience anyone we say Good Luck, don't spend it all in one place, and that's that. Half a billion dollars in btc isn't something the owner can fix with a Hey mom, bail me out.