It’s about how the past has everything to teach us. Specifically, failure. It’s not about discarding the past, Yoda talks about growing “beyond” [it]. That’s the quote. Rey is going to make different choices than Luke, and Luke is not going to let those past choices define his identity. Rey is not going to define herself by her past as an unwanted nobody.

All of the other read is just meta-textual baggage that has more to do with the aforementioned “culture war”. But nobody is shitting on our toys, maybe they just always played with them differently