Original sentence: This largely determined the modern Japanese attitude to platonic or romantic relationships between girls, on the one hand leading to a rather tolerant perception of non-sexual intimacy between girls, and on the other, led to female homosexuality being considered an "innocent teenage phase"
Edited sentence: This largely determined the modern Japanese attitude to platonic or romantic relationships between girls, on the one hand leading to a rather tolerant perception of non-sexual intimacy between girls, and on the other, led to the rooting of a reprehensible attitude towards female homosexuality as the "innocent teenage phase"