SLF here. Observant Jew as well.
I am NOT going to call anyone here an Antisemite for having a go at the TLV route or Ultra-Orthodox Jews on other routes. The reasons for the lets say lack of politeness are two-fold.
- Ultra-Orthodox Jews have this idea that nothing is more important than their religious needs. This is not rudeness per se, but they are brought up this way and despite a great deal of correspondence in the Jewish newspapers nothing will change. The reason is that these people rarely venture out of their little world, do not have access to the internet and genuinely have no idea that they are causing offence. Because their womenfolk are downtrodden and expect to be told what to do, these men do not have someone else to tell them they are doing something wrong. If I acted like they do, my wife would slap me down something hard.
- The Tel Aviv route also includes Israelis who have a very Levantine manner, which sounds like everyone is arguing, but in reality they are just asking how their friend's mother is. However they have no concept of queuing (try getting a bus is Tel Aviv) and only take orders from their army commander. I love going to Israel, but the flight can be a nightmare, as some people know so many other people on the plane, they they effectively walk the from UK to Israel glad handing the whole plane. The trick is to find those passengers who appear to be Jewish, calm and know a few people. Ask them to sort out the unruly ones and the problems will disappear quickly.
I would hope that CC would prefer the flight to TLV than to other slightly less tolerant and warm destinations. It does usually calm down once the plane has left the tarmac. However, I do genuinely do not understand why boarding starts so close to departure time. If you know a particular flight always takes 20 minutes longer to board than the average, start boarding that little bit early or pad the timetable so that people do not get fractious that they are going to be late.