Kid and Law aren’t the protagonist.
Kid and Law didn’t promise to take down Big Mom.
Kid and Law didn’t take a piece of Big Moms territory, take down Big Moms castle, and tell her that he’ll take them down.
For anyone but Luffy to take her down would be disappointing
eustass kid was the rival Oda built up for years
kid called her his prey and was fucking with her since fishman island at minimum which was before luffy was messing with her.
Kid went to whole cake wounded a sweet commander stole something and sunk multiple ships that tamago himself needed to tell big mom about it because kid messed up their economy
I’m not expecting you to remember or know these things coming from the person who said kid wouldn’t reach big mom and would end up fighting apoo somehow. Don’t think your opinion is valid
Kids been connected to big mom since the beginning even being the first person to name drop her by the way.
Back on topic I don’t think they beat her round 1 but round 2 which is a whole other theory itself though.
I said it a lot of times before but I’m expecting kid to first start to use electromagnetic attacks to hurt big mom after that later he gets conquerers coating and uses that.