Using the first entry for steal
on the English wiktionary:
To take illegally, or without the owner’s permission, something owned by someone else without intending to return it.
So, if you can’t actually own stuff, you can’t (by definition) steal it.
I get your point, and this more of an AcKsHuALly type of argument, but it’s an fun way of begging the question of what “I own this” means in today’s society.
what is?