Basic reading comprehension: Sanji is just being a gentlemany idiot as always and claims his love (for Nami, who he is protecting) is giving him this "power up" (that he received an arc ago just like we saw)
This is a big perversion of Sanji’s morals, to think he would dishonourably take credit for something that’s ultimately not of his making or origin, ie a gene activation that he can literally switch on and off, and claim that as his “undying power of love”
Firstly, that’s an absurd notion, such that you folks need to seriously question your assumptions here that isn’t right about a person.
You don’t remember that this power-up came about as a result of the raidsuit , which taken to its ultimate conclusion would have stripped him of all love.
His newfound strength has absolutely nothing to do with “love” when in fact it is associated with the opposite; Germa
what does Germa represent? Rigid, emotionless bodily mechanics (physical power).
Now where does “undying power of love”‘for into that?
Sanji’s gene activation power-up is the ultimate expression of the corporal (body) , not love
Colour of Conquerors is the ultimate expression of the passions and wants of the user so that would be the perfect expression of his “undying power of love”
Hence, it is an absolute nonsensical and perverse reading to say that what Sanji wants to convey has got absolute anything to do with his genes
Same stuff he claimed back in Thriller Bark.
Oda would probably tease stuff to low-key clue us in to concepts like haki in the preskip times when we didn’t ye tknow what it was. He would probably do that often
Difference now is we have the terms and those concepts are now in our vocabulary, so Oda is not gonna be able to play that game anymore where he is suggestive and plays around with the concepts of haki and such like he did pre timeskip.
The way Sanji delivers that sentence and viewing the context that I described, it is undoubtedly conquerors haki and now Oda is straight up telling us that it is, he isn’t ambiguous or suggestive, he is very directly telling us