You voted for him after seeing Lee Jae-myung's promises, so why are you acting out now?

Ahead of the 2025 presidential election, Lee Jae-myung
personally defined the Democratic Party
as being in a center-right position,
presenting a path of post-ideology, post-factional realistic pragmatism
and growth-oriented policies.
During official election campaigning, he directly stated
that he would work alongside rational conservative figures,
and the election campaign committee also officially declared
a centrist pragmatic course and the recruitment/integration
of rational centrist-conservative forces.
Did you actually cast your vote for Lee Jae-myung?
He is fulfilling his promises as stated,
so why are you all acting like this now?
I simply cannot understand it.
.
.
Regarding Rep. Kim Sang-wook, who left the People Power Party on May 15, 2025: