You've tried hard to keep it nice and respectful, while sustaining and expressing your own convictions, and that just doesn't work with these people. They always turn nasty once it's clear you'll keep resisting their bullshit, because their own racist metaphysics is the only thing in the universe they value.

Here, assholes, try this for genocide:

www.btselem.org/English/Statistics/Fatalities_Lists/Is_by_Pal_eng.asp

In their typical way, they rigged the game for you going into this "debate" because they framed it as "how many have the IDF killed." Most of the genocide is actually being perpetrated by settlers, who tend to be incredibly vicious and essentially above the law.