Anime

{一二|じゅうに}{歳|さい}の{女|おんな}の{子|こ}と{恋愛|れんあい}してどこが{悪|わる}い

{Juuni|twelve}-{sai|years_old} {no|GEN} {onnanoko|girl} {to|with} {ren'ai|love} {shite|do.CONJ} {doko|where} {ga|SUBJ} {warui|bad}

"What's wrong with falling in love with a 12-year-old girl?"

Great, now I'm thinking about that Boyzvoice song... Also, I find it interesting that the quote represents the number twelve with positional Kanji numerals. I wonder how marked that is?

That aside, trying to look into this I also found this quote attributed to Miyazaki, speaking about Chihiro's VA during a live broadcast promoting Spirited Away:

{柊|ひいらぎ}さんが{１３|じゅうさん}{歳|さい}ですけど、そのぐらいのガールフレンドが{何人|なんにん}かおりまして

Hiiragi-{san|HON} {ga|SUBJ} {juusan|thirteen}-{sai|years_old} {desu|is} {kedo|CONTEXT}, {sono|ANA.GEN} {gurai|approximately} {no|GEN} {gaarufurendo|girlfriend} {ga|SUBJ} {nanninka|several_people} {orimashite|to_exist.POLITE.CONJ}

"Hiiragi-san is 13 years old; I've had a few girlfriends around that age."

The screencap of the broadcast with subtitles (side note: I wonder how live stenography works in Japanese...) has apparently been circulating the Japanese Internet for 14 years already, but I'm having a hard time finding the broadcast itself, and in any case both these quotes don't really have much context to go off of. Really, I want to say that my general rule for anyone famous and successful is to prepare for the worst but assert very little, because at the end of the day these are human beings who you don't know and likely never will know.

When it comes to accusations of pedophilia specifically, the accusation should be looked at holistically in context: What would the significance be, of this person being a pedophile? What even is pedophilia, for that matter, given criticism of the institution of sexology? And in Miyazaki's case, my impression from a few searches is that accusations of him being aaiu have been utilized by pedo anime fans to legitimize their own behaviors, because Miyazaki being a pedo would mean that possibly the most internationally famous figure in the anime industry is "one of them"; and naturally, it seems like these pedo anime fans will do this no matter how true the accusation really is, because they stand to gain from it no matter what; likewise anyone who'd stand to gain from smearing Miyazaki's reputation, such as "AI" bros as mentioned in another comment.