When some antinatalists argue from the idea that
There was NOBODY who wanted to come into existence.
Pronatalists may claim with the same right that
There was NOBODY who did not want to come into existence.
While antinatalists speak of existence as being imposed on non-existers, pronatalists conceive of a deprivation of existence with respect to non-existers.
Both arguments seem to be wrong for ontological (semantic) reasons.