So, Peter owns 2 numbers and Peter owns number 2. But how can someone own a number? The first three rows in our database clearly show that numbers are just means to quantify things, they are not things that are owned. As such, these numbers are valueless on their own, and they can be created out of thin air.
Bitcoin is a "thing" just like the others, which is why it's generally treated as property or currency. The fact that you can only fathom bitcoins as "numbers" is just a function of your own limitations.
And bitcoins definitely can't be created out of thin air. You can spin up another new cryptocurrency out of thin air, but not
bitcoins. People across the world run Bitcoin nodes that enforce the protocol. They completely ignore any attempts to print BTC out of thin air.