Like scraping dog poop off my shoe

Every so often I get a response like the one below to a blog  I had ironically titled Oh, Those Evil Jews. This one came this morning.

"Who needs the murderous greedy perverted zionist jews.
They should be eliminated from the face of the earth like the roaches they are."

My reflex response was to delete it, like scraping dog poop off the bottom of my shoe.  I immediately regretted it. This is too perfect to ignore. A pristine picture of Connection/Commonality Deficit. There's a lot of hate packed into two short sentences. When does this get to be a certifiable mental disorder? 

What if the underlying truth is: Despite our many differences, we are all more similar to one another than we are different? And what if the underlying truth is: Despite our separateness from one another, we are all inter-connected parts of the whole. That would be a reality too painful for some to accept.

If we're so similar, how can I be special, to whom can I be superior?

And if we're all connected, how can I destroy you?