Impel Down Arc

A while ago everyone was discussing how the girl in the live action of one piece during Gol D Roger's execution scene could be crocodile. At first I thought the creators probably wouldn't do such a serious gender swap cause it wouldn't be beneficial or anything. But I was rewatching the impel down arc in the anime when I realized how Ivankov threatened Crocodile with a supposed secret they knew. In turn not only was Crocodile not angry but also embarrassed, after which I came to the conclusion that maybe when Crocodile was a rookie during a fight against Ivankov got her gender swapped from a girl to a boy now and hence became a secret he feels ashamed of revealing and maybe that is why the person we saw in the trailer who seemed like crocodile but was a girl. Anyway that is my thought I am open for any counters Thanks for listening to my rant.

So I was watching impel down, and now I'm at the scene where the level 5 prisoners taunt hancock, then they said this

For context: Boa hancock and luffy came to impel down to rescue ace, since boa is a warlord they will let her in fine but for luffy, they had to sneak him in, fast forward and now boa hancock is meeting ace with the rest of the level 5 prisoners, the guy with doku doku no mi was starting to be related to taking shits, the prisoners noticed boa and started flaunting over her

Welcome to the first part of this series where i share what devil fruit i am afraid of. First up is magellan with his fruit which is the stuff of nightmare that has went through Luffy,ivankov and even Blackbeard and his crew with ease too and it doesn't even have a clear weakness you can exploit or a way to block it as it get easily get more toxic as seen with Mr.3

Gear Second And luffy took damage luffy just jump back and went back to gear second without the stance for it how is that possible you think it's a mistake,