@blehb
Ultimatly, I’ve found that size is generally derived from some other fetish/kink: bondage, rape fantasy, pet play, and so on, all of these share similar origins, it’s just… magnified. Size makes things that are often more ‘consensual’ more of an absolute.
You want to be strong? Powerful? Be a giant, and destroy everything in your way.
You want to be a gentle guardian, or you want a well trained pet? Get a shrunken woman, and treat her to your tastes.
You want to helpless but loved, or to be put in your place? Get a kindly, or not so kindly, person to take care of the tiny you.
You want to feel helpless yet special, weak but still with a life? Be a giant’s That One Person, given unique treatment by the living natural disastor.