AyrYntake wrote:
First of all, we know for a fact that Rei is a clone from the Reiquarium scenes.
The only thing that we know from those scenes (aside from the dummy plug info) is that Rei has been cloned. There's a BIG difference between being cloned and being a clone.
AyrYntake wrote:
Secondly, we know from the unnatural hair colour (as well as her behaviour, and her own admission) that she is not entirely human.
No, we know from her hair color that she has Anime Hair™ (see Laws of Anime physics #31). Sadamoto himself said very clearly that the hair color had no deeper significance than to make her look cooler and more distinct, or something to that effect. Her behavior shows no signs of being anything but human. More importantly, the fact that she carries the soul of Lilith sheds no light on the nature of her connection to Yui.
AyrYntake wrote:
The only humans who could possibly have been in direct contact with Angel material in the entirety of the Evangelion storyline, discounting pilots, are Akira Katsuragi, Yui Ikari and Kyoko Zeppelin Soryu.
And where is it written that her genome, or the human part thereof, must have come from someone who was in direct contact with Angel material? Hell, how can we even be sure that only one human contributed to her DNA?