Dont forget @mummy917 HE WANTED THIS.
By doing all the problem solving, you are taking his freedom away from him!! The freedom to.....parent his kids, juggle work and childcare, be an independent adult, take the consequences.
Do you really want to be the "controlling bitch" who takes all that freedom away from him?!
Obviously I am joking but it might help if you reframe it in your head that way. That you not stepping in is giving him exactly what he wants, his freedom.