I accept that it may be possible to make the contrary argument. But I was unable to do so, as I demonstrated in my essay. I would be happy to see someone demonstrate that they can make such a complementary argument.

I can easily point to things which are bad, and which can be corrected by removing the bad, but which are not corrected by adding good. No amount of making the trains run on time can make Hitler "not bad". You have to remove the killing of millions of people to make it not bad. But take any "good", like planting flowers, and add some bad, like planting them on the bodies of your torture victims, and you make it all bad.