The throne would've passed to Rhaegar's son Aegon when he died, though. Considering we don't know the exact timing of Jon's birth in comparison with the baby Aegon's death, it's uncertain as to whether or not Viserys would've ever been considered King. And then there's the fact that Jon was being guarded by actual Kingsguard as well; again, that indicates he's likely been legitimised with the intention of making him King if Aegon's dead. I still don't see how the 'girl power' comment is at all relevant.
Right now, from what I'm aware, we've got one King and two Queens. Possibly two more Kings, depending on whether Euron considers himself one, especially with his plans to marry Cersei, and depending on whether or not we count the Night King. Out of the two Queens, one is a mad, evil tyrant and possibly the shows central villain, while the other has come off much worse than Jon in their encounters, appearing self-entitled and more obsessed with her own claim to the throne than the safety of the realm itself.