Warlords were a complete disaster
The only time they were required to do something they
1.Didn’t go(Jinbe)
2.Fought against them(Hancock)
3. Attempted an alliance with a former warlord(Doffy)
4. Left when another Yonkou showed up(Mihawk)
5. Broke out the worst criminals in the world(BB)
Fuji was completely justified in pointing this out