I can’t understand why so many of you have a problem with Rey being a Palpatine. For me, it’s the only possible explanation why she is so powerful. I like the character of Rey, but in Part 7 & 8 it always bothered me, that she was too strong and powerful. But when it became known that she’s a Palpatine, everything made sense to me.
But why is Palpatine so powerful? If it’s genetic, there’s no reason Rey couldn’t have been born with the same random innate power as young Sheev. If it’s from years of intense Sith training, then Rey wouldn’t have inherited it.
The problem isn’t inherantly with Rey being a nobody, it’s that she was written in such a way as though she is coincidentally connected to everything and central to everything while also gaining power conveniently rapidly and effortlessly, with J.J.'s mystery box as the “excuse”.
But you’re right in that Palpatine being the reason doesn’t work, because Palpatine needed to train to become as powerful as he is. In my opinion, a better way to fill J.J.'s mystery box would have been if they had just gone the Bourne Identity route: I.E. make Rey a powerful partially trained former student of Luke’s who had gotten her memory wiped. TLJ could have then opened with Luke recognizing her but still refusing to complete her training. Rey’s disillusionment with Luke would coincide with her gradually regaining her memories of the man Luke used to be.
But as it stands, I think people place way too much stock in the “message” that comes from Rey’s lineage. There doesn’t need to be a message, some people in Star Wars are randomly powerful, most people are randomly not powerful at all, some people are powerful because of their bloodline, it just is what it is and it doesn’t need to be a message about what people can be in real life, other than the fact that none of that stuff should matter in regards to the choices you make. And from that perspective, Rey being a Palpatine is…fine.