JL;DR SUMMARY Marnie Fienberg, founder of 2ForSeder, aims to counter antisemitism by encouraging Jewish families to invite non-Jewish guests to their Passover seders, as a tribute to her mother-in-law Joyce Feinberg, a victim of the Tree of Life synagogue shooting. A way out west there was a fella, fella I want to tell you about, fella by the name of Jeff Lebowski.