Look at it. Croc is a logia and Jimbei seems bad-ass as hell. But why they didn't stop Magellan. Even BB seems to het owned. What do you think?
In my opinion.
Magellan liquid posion is maybe like water and blood to Croc which would make him easier to fight.
Jimbei was limited on land. But I think he could take him on but dunno he didn't try.
BB was owned cuz he didn't try to fight him.