Do you guys realize they no diffed 10,000 soldiers of an Emperor's crew, some top ministers included? Remove the candy bullets, and they take down Kaido's entire 40,000 force. If Luffy scrambled to gather 4,000 people, imagine how much Germa is worth.
The only people strong enough to solo the entire Germa army are Admirals and Yonkos. Katakuri or Marco can't solo all 5 Vinsmokes plus thousands of Germa soldiers.