Folk have been sacrificing loved ones since the beginning of time (at least since the beginning of myth and the bible) For example - Agamemnon had to kill his daughter Iphigenia so that the Greek fleet could sail. NT - God sends his only son to die - how many sacrifices are required in the OT?
Beginning of Dany's story, Dany shows no concern over her brother's demise. She shows no love for her brother. She has no brotherly love (understandable). At the end she shows no brotherly love for the populace of KL (Brotherly love has the meaning "feelings of humanity and compassion towards one's fellow humans". Dunno why we had the 7 bloody seasons in between - could have just cut to the chase. See...predictable.
Let's face it, in the absence of a semi automatic weapon, Jon's choice of how to kill her was a bit restricted. It was either a knife or a dragon. Fire tends to carry the meaning of cleanse - knives are phallic. Jon kills her and is banished to the north and told he can't procreate. This is probably telling but I can't be arsed to follow it through to its logical conclusion.
ETA.
Argh - SpuffyGlitz - sorry! The exasperation at the beginning wasn't aimed at you!

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