@farmerman,
You have my sympathies FM !
You are quite right asking Frank to qualify his remarks but he has never shown any ability to do so.
It is over 10 years since we have been trying to explain to Frank that the open set of
ad hoc hypotheses about
causality (be they gods, aliens, etc), are equivalent human social constructions, such that the phrase "possibility of
actual independent existence" is facile, as indeed is his mantra about "not doing belief ". He won't accept that that phrase itself constitutes a particularly ludicrous belief on his part!
It is a pity that Frank is likely to be unaware of the "realism/anti-realism debate" in science regarding the ontological status of "entities". That debate has been abandoned by many philosophers and scientists as vacuous.
( Reference: "Arguing about Science" 2012 Alexander Bird, James Ladyman)