If however such a thing were to exist then it is mine. Why should it belong to, or go to another entity? I’d rather it be destroyed than become the play thing of a benevolent (or not so benevolent) entity. Let it escape.
Perhaps you were just being preëmptive, but at the point you posted this, no one had brought up what happens with the soul after death, or even how long it exists afterward. Plus, there are quite a few belief systems in which souls do not remain distinct and isolated. After all, if one thinks of the soul as being analogous to water in a bucket, then one should expect that once you kick the bucket the water would mix together with other water.