A YouTube comment I typed out to try and help someone understand Sanji's character a bit better:
I almost left this comment on your last video, but didn't because I didn't want to be "that guy." I'm only leaving it now because I believe you will genuinely be able enjoy the show more if you understand something about Sanji's character.
Sanji is a closeted character.
Not (necessarily) in the homosexual context, though many have (and will) argue that point. What Sanji is "hiding" is a self perceived flaw in his own character-- a feeling of not being good enough, and particularly of not being masculine enough.
Sanji grew up around a lot of toxic masculinity and was constantly belittled for not being like them. He hates men because of this, but as a result also desires approval. There's a certain amount of self-preservation in it too, an idea that if he tries hard enough to "fake it" he can get by without being "seen" for what he is.
I do NOT think this excuses any of his perverted behavior.
However, what I think you and many others may have missed is how much of Sanji is just a front. He IS the man behind the curtain. He is literally ALL talk.
I cannot say this with 100% certainty as I've been reading the manga over the course of many many years, but I believe that in the comic Sanji has never once touched a woman without her consent. He does not hesitate to go on at length about how beautiful he thinks women are, but he still respects women as people.
Sometimes Toei (the animation company) make him act like more of a perv because they think it's funny. I do not fault you for finding this annoying. It makes the anime basically unwatchable to me personally, but Sanji as Oda writes him genuinely is and wants to be a gentleman.
He genuinely believes that women are better than men, and therefore thinks its only "proper" that he act as their servant. He also believes that all men are inherently dog shit. His issue with Zoro can be boiled down to "he's a masculine guy" and masculine men are threats to Sanji's well being. Zoro mostly fights back because Sanji is annoying about it.
Many people (for multiple reasons) believe Sanji actually genuinely wants to be a woman, and thus view his hatred of men as an extension of his own self-hatred and his admiration for women's bodies as an expression of that desire. Again, IF true this would not excuse his behavior, but in no way is his "perversion" born from a desire to CONTROL.
Sanji would absolutely never ever do what Hogback has done to Cindry. If a woman rejected Sanji, he'd think-
Of course she would reject me, for I am a disgusting pig/man/pervert and she is a lady. This is the natural state of things.
-and continue to fulfill her every desire. And if her desire was for him to jump off a cliff? HE WOULD DO IT.
He doesn't "serve" women because he wants something from them, he genuinely thinks women just deserve to be served.
So please, if you can, look at Sanji's actions and not at his words. Keep in mind who it is he says these things to. This is not a command! You can have whatever opinion of Sanji you like, I just think you'll like the show more if you can keep this idea in mind.