Just when I thought that they could go no lower in my esteem, they write this justification* for murder (presumably wrongful death, unfortunate [fatal] consequences of their various policies, etc.) at their behest! No, I won't have it ! They had no esteem in my eyes in the first place! Let me rephrase:
Just when I thought they could rise no higher in my contempt, they write this justification for murder (and so on and so forth)!
* Okay, written in 2016, but I only just read it.