crocodile didnt pose a immediate threat to every one in alabasta its different with kaido because of SN lose this fight there is nothing stopping him killings every one on the spot. All crocodile wanted is to get more powerful he didnt care what happens to the people or who opposed him, Kaido on the other hand wants to enslave the people of Wano and will kill any one who opposed him and thats the difference.
Edit: like i said in short it doesnt make sense for the SN to lose if they lose there is no stopping Kaido from killing everyone in wano
Edit: like i said in short it doesnt make sense for the SN to lose if they lose there is no stopping Kaido from killing everyone in wano
Kaido actually isn't trying to kill Wano citizens, unlike Crocodile. The island is going to land eventually.