My preferences are not important. The point is that a system that does not allow the forcible return of stolen property will not be acceptable to society, except for thieves and other criminals. In the end, it will be rejected even by the libertarians who now think that irreversibility is a good thing.
Forcing the return of stolen bitcoin is no more or less difficult than forcing the return of any other stolen good. Why would you think otherwise? The only reason I can see why you would think otherwise is that you are identifying banks as the only actors worthy of recognition.