Just as there were Jewish Kapos who cooperated with the Nazis (For a definition see http://www.jewishvirtuallibrary.org/kapos
) in the concentration camps, I consider these people (if they are really are Jewish) to be on the same level.
For more details: http://www.jewishpress.com/news/breaking-news/watch-leftwing-new-york-jews-say-kaddish-for-dead-hamas-terrorists/2018/04/05/
Saying Kaddish for dead Hamas terrorists
Posted by Yisrael Medad on Thursday, April 5, 2018