Revealing the ending of Made in Korea

‌It seems like Baek Ki-tae and Baek Ki-hyun are fighting with mutual hostility, but
in reality, I think there was a silent agreement between the brothers.
In the battle between the KCIA and the Defense Security Command, if they are on the same side,
they both die if they lose.
So, Baek Ki-hyun occupies a key position in the Defense Security Command, appearing to oppose his brother,
and the ending would be the younger brother saving the older brother when the Defense Security Command wins as the final card.
If even just one family member succeeds, they can all live together.