Madara was feared?
- Green Bull admitted he feared Kaido along with his colleagues.
- Blackbeard, when mentioning Kaido, stated that he is "A fearsome monster."
- Oden, just before invading the capital castle and blindly attacking Orochi, stated that Orochi was wielding the strength of a "feared pirate."
- Kinemon, who had Oden killed by Kaido, admitted that Kaido and his presence kept enemies away from Wano.
- Novel Ace claims that only Kaido's existence causes terror and fear among humanity.
- In his introduction and solely by his presence, he made Hawkins give up on fighting.
- There are also the 5 elders.
We cannot deny that Kaido was portrayed as someone who is feared. It's just that the characters trying to fight him were vengeful characters seeking revenge, and main characters in comparison would be like asking if Naruto was afraid of Madara.