![](https://64.media.tumblr.com/fe8638c8de9ae91906ecdb0dc976220a/e765981f0a3261e4-5c/s1280x1920/3c5537fe1c47b4fc58e0013a146a4db669a22d90.jpg)
There's a lot to unpack here, but the implication that Jews aren't actually Jews if they're not of Israeli heritage or culture is just straight up antisemitism.
(Also, Russian Jews predate Israel by hundreds of years. In fact most American Jews are descended from...Russia.)
BTW, the poster used to be a UCLA professor. He was forced to resign after multiple sexual harassment complaints from undergrads. Take that as you may.