I love your theory on Dad-Kogane being a druid, but I'm a little confused about what you think happened to him/ where he is; I wholeheartedly love the theory of him and Mom-Kogane both having to leave to protect Keith, but in some of your theories it sounds like you think Dad-Kogane is still on Earth? It doesn't make sense to me that he'd abandon Keith to protect him yet would still stay close on the same planet, so I feel like I'm missing something in your theory.
All right, so, basically my theory goes:
> Initially, whole family is together, somewhere in space.
> There’s some kind of threat which leads to them splitting up- Mom Kogane gives Dad Kogane her knife, and Dad Kogane/Keith head to the Blue Lion, either captured by the empire, or in an unknown location. Keith is probably a baby at this time.
> Blue takes Dad Kogane and Keith to Earth.
> Dad Kogane establishes human appearances for himself and Keith. A while passes, Keith grows to a child/old enough to remember Some Of This.
> There’s some kind of threat that causes Dad Kogane to separate himself from Keith. At present this is a mystery, but, whatever it is, we know he did not leave Earth entirely, because the Blue Lion is still there. We also know it was probably not the empire which might make it a threat on Earth- I don’t like the insinuation the Garrison is evil but there might have been a misunderstanding.
My rough thought behind that is, it could be someone realized Dad Kogane was not exactly human and given his shady history as an ex-druid, it wouldn’t take much for people to consider him dangerous. (Druids can kill people with their bare hands and while I doubt Dad Kogane committed murder, that point stands, and what we saw of the Garrison is that they tend cautious- see, they sedated Shiro as soon as they got a good look at the prosthetic and placed it as unknown technology.)
The thing is, even if this is the Garrison who is fundamentally well-meaning and I doubt they’d keep someone, even nonhuman, tied to a chair in their basement- mostly because I just feel like Garrison technology is not really good enough to keep a teleporting space wizard down unless they resorted to something like keeping him continuously sedated and that’d be like…