Thank you for again telling me the situation. It is important that you elucidate on the weakness of my cognitive skills, to draw contrast to your own intellectual superiority. Perhaps you feel this is a conversation to be "won", or that you in some way are "holding ground". That is possibly your POV, though of course, I have no way to be sure.
What I do know is that having our opinions or thoughts called into question can psychologically put us on the defensive, feeling attacked. Identity-Protective Cognition hardens our stance, and we become unwilling to concede at all. Because existentially, it feels like a danger. It feels bad.
So what I will do is concede that we may both have succumb to such, as is cognitively standard, and quite prevalent in today's digital, social media filled society. I certainly become protective and defensive in situations involving my ethnic group. And I can easily see how one could become so in regards to perceiving someone taking your words out of context or over-inflating their impact.
There is a difference between being unintentionally insensitive and being racist or hateful. I do feel, personally, there may have been some unintentional insensitivity in the comment, but I do not think you are hateful of Jews. And please realize, I am telling you how it reads to me. Perhaps it reads differently to you; I do not have your contexting within my brain. But, you also do not have mine, and this is where the unintentional comes in.
Regardless, you are correct that this isn't productive. I am sure you are not a specifically bad person, and realize this was just a little Internet interaction. Words rarely ever have meaning standing alone. We do not share each other's perspectives, but likely are not really in conflict at all.