Most Zionist Jews I’ve met have become interested in their identity only because of Israel. Thoroughly assimilated before that. Not even one or two family Yiddish phrases for fitting situations (like az okh n vey or something).
Usually carriers of their home’s typical understanding of nationalism, only adapted for Israel. Cause at home it’s kinda frowned upon usually, while for Israel it’s something different, “allowed”, and they get to feel themselves better, of some different blood.