his/her point is that while it is hard to imagine, (sadly) this type of brutality/murder is carried out by our (assumed US) government as well.
Similarly, I was going to write my congress-critters to oppose NSA surveillance and drone strikes, but you've taught me wonderful logical insights: see, demonstrators are kidnapped and tortured in Ukraine, so that makes my point invalid and refutes any arguments I had against drone strikes and NSA surveillance.