>> Stealing/theft requires deprivation of property
maybe you should look up the definition of property, which is a set of legally recognized rights over a thing, typically including:
* possession (what you're focusing on)
* use
* exclusion
* transfer
The last 3 seem like they have been breached, in legally that's theft.
Theft is not the breach of any property right. It's specifically the deprivation of property without consent. Yes, I have checked the definition in my jurisdiction.
Getting punched in the face also violates rights, yet isn't murder. Murder is specifically about dying.
Violation of these rights may be criminal without meeting the strict legal definition of theft.
This can even extend to stealing physical property.
Depending on local laws, stealing a car may not actually be theft if the defendent can prove they intended to return it before the owner got home from work, though it would certainly be considered theft in the colloquial sense of the term, and they would still be guilty of a lesser offense like civil and/or criminal conversion.