Depending on who you ask, Jews could potentially be considered a marginalized group. I don’t speak for all Jews at all but I’ve never been offended or felt that my culture was being stolen by someone using Yiddish slang or eating kugel or matzah or challah or any other Jewish food. Hell, if someone walked in and was all “sup bitches, it’s Tu BiShvat, yesher koach yall” id be in stitches and happy that someone paid attention and remembered.

But again, I’m vastly in the minority on this.