(What some Italian was thinking of, recycling a Hebrew King into inauthentic art sold for profit on commission, is still quite sus, but them claiming ownership of it is beyond the pale.)
Jesus, by the way, is described in Paul as having been constructed, after the manner of Adam and of saved souls' post-resurrection bodies (even now awaiting them in heaven against the fore-ordained apocalypse), from aforesaid David's (implied captured and preserved, or allegorical) "seed". This too does not require actual existence. The waiting bodies, notional or manifest, canonically lack anything for foreskins to be attached to or severed from, perhaps a mercy, and presumably navels as well. No forecast is made about nose hair, either way. Jesus, in contrast, as a fertility totem is necessarily endowed. Who would essay to circumcise Him is an open question; theologically, He doesn't seem to need it.