Top 10 reasons to hate Zoro x Nami:
โข Although Zoro still distrusted Nami at first, he never did so with her seafaring skills.
Lost -> Navigator
โข Zoro has always saved Nami all the time, and will continue to do so. His thoughts about her softened as they related, transforming their love-hate relationship
โข Zoro has always been (and always will be) the first person to notice something wrong with Nami, as he did in Arlong Park or Zou
โข Although Sanji was the most in danger in Thriller Bark, Zoro continued to worry about Nami
โข Zoro and Nami have shown concern for Momo in Wano, giving a certain parental atmosphere
โข Although Zoro does not like anyone touching his swords, they are entrusted almost exclusively to Nami. Example is this official illustration
โข Although Zoro doesn't like physical contact, he doesn't mind being touched by Nami in color spread 771, or that he seeks physical contact
โข Nami thinks Zoro is the toughest person of the crew, and she knows that he is worth more than 2000 men
โข Both go shopping in color spread 824
โข Both do laundry in color spread 745
Leaving aside the initial joke, those who hate this ship probably only like to look at the aesthetic side, that's why many other ships are more popular than Zonami :^
