==Response== 
 It may be that we need to adjust our perspective of, and our standards for, WP:Civility. Perhaps, for our own social well-being and sanity, we should work to communicate to our "toxic neighbors" that we accept that they have different standards of civility, but that we expect and hope they will take some personal responsibility and accountability for demonstating more empathy and caring for their fellow editors. They can be more self-policing, showing a capacity toward tolerance, and we can support their efforts to co-exist. They need to willingly follow the norms and customs of Wikipedia. But, if they continue to distract more than they contribute, they need to go. If they cannot follow a simple direction like respecting another editor, they need to go. In balance to the level of attack, your compassion toward the offending editor is commendable. I hope he is worthy of it and begins to respect his fellow editors. But, if he doesn't, he needs to go!