MTFBWY is a phrase used by non-Force users only because the Force can use those people to accomplish things even without their direct attunement to it or realization of what’s actually happening. But saying that to the average person is never gonna result in them shooting lightning out of their fingertips.

Quite frankly, I don’t care if this is one interpretation of how using the Force works coming out of the theater in '77. It’s 2024. We know how the Force works in people according to the prequels, books, and shows we have. And you didn’t really give a good argument to explain it “always being there” in Rey according to TFA and TLJ.

EDIT: Heck, according to your own edit of Starlight what you’re describing is NOT what happens. The dark side awakens in her, the Force never “chooses” her. It’s what retroactively makes the title of that movie kinda badass. It’s never specified which aspect of the Force it is that awakens.