Some people have fantasies about "educating" others. Teaching others "the truth" or rather the only thing that fits their little minds. Then there is this large inefficient army that like every government organization needs to spend its budget. Then there is propaganda. And here we go.
The word culture is often used in referring to refinement, but not here. Poor Ms. Kishroni, who has to get used to rudeness masquerading as culture. Politeness is not anti-cultural.
When I am in Israel. Nothing was difficult. It was great and genuine to be with people who are honest and true about who they are. Rude is much more honest than polite. Polite is truly rude as no body care. Nice and Polite is passive behaviour.
Since Jews are returning to Israel from many different countries they bring with them the culture of behaviour from where they were born.
Once you are in Israel you become like everyone else. Don't worry about polite and nice. It doesnit do any good.