Kaidos dialogue throughout was amazing, it implied SO MUCH about his beliefs, past, trauma, experiences, whatever. His own philsophies too. Absolutely tons of layers.
Its like
@Rottkins and I think
@EtenBoby said too, Kaido is like an Onion, or Oni are like Oni-ons. They have layers.
Since we know giants were enslaved and betrayed too by Carmel, Oars was a continent puller apparently and even the likes of someone like Kuma was labelled as a tyrant by the WG, I wouldnt be surprised if ancient giants/Oni were enslaved and forced to do horrible things too.
@MonsterKaido