I wanted to play an Israel game, so I started as Russia, released Ukraine, conquered Palestine, played through to 1870, did a couple of tag switching and had Israel free! But things aren't quite going as planned.
After a good 20 years of play, only about 6%, or 20k, of my pops are Ashkenazi or Sephardem. I of course got an intentional boon by controlling the province for a few decades as Ukraine (I knew that there would be a lot of migration, and that Ukraine's large Ashkenazi population would be a part of that), but aside from that and a little assimilation, I'm not getting any Jewish pops.
I've heard in the past that Israeli cores in Palestine will cause Jewish immigration. I couldn't get this to happen in Vanilla, and I'm still not seeing it in AHD. I didn't have any immigration at first, but around 1900, with lots of employment available in factories and plenty of liberal reforms, I started to being in immigrants. Sweet! But they're mostly British. There are still sizable populations of Ashkenazi in Ukraine, occupied Poland, and Russia, but they're not coming!
All that to say, what the heck! Anyone know if Jewish POPs will really immigrate to Palestine once Israel has cores there? Did I dream that up, or is it real?