I'm in, so you probably know what 'beytzim' means
To answer your question on being Jewish, hebrew, or working on Saturday. 90-95% of Jewish Americans are like most Americans: religion is simply a tradition in the family, but doesn't affect their daily lives or careers. "Hebrew" is a language and has been so for several millenia. Calling me a 'hebrew' will show me your ignorance and I will lose all respect for you.
There are so many ignorant pilots out there who came straight from the bible-belt south to flying and I'm the first Jewish person they ever meet. I look forward to the day when people don't wish me "Merry X-mas" while I'm wearing my Channuka tie, let alone ask me what's a dreidel. I look forward to the day when I don't have to explain that no, I don't believe JC is my savior. Anyway, let's have an organization for jewish pilots, why not.