You can't be serious about the hostility to the Jewish DLC thought. This issue is extremely legitimate and this thread should remain for as long as possible, the subject must be touched.
As far as i am concerned, if Hellenic can be added, so can Judaism. What needs to be done? A couple holy sites in De Jure Jerusalem, a symbol, a description, and that's it. Khazaria is now accurate.
This is so simple to implement that it can be done in an update. Paradox must see this as a chance to add spice and flavour, you don't need to do battle about this topic, it's just whether a coder has that half an hour it takes to add this. (I know i can add a religion this fast in EU3)