It’s not a question of sensitivity. They are required by law to work and they knew that when they took the job and bid for the district with the Jewish routes.
People should have a little shtultz and realize that these are a few whiners who think they are above the rules and enjoy the fact that they can exploit the Jews by putting us on a guilt trip and subtly reminding us that we are supposed to feel like second-class citizens.
And the comparison to civil rights is ignorant. There is Freedom of Religion in this country. As for a Jew being let off work for a Jewish holiday, if it was not stipulated beforehand I absolutely agree that he should not be let off work and his boss has a right to fire him. Or take a sick day or something. In this case it is part of the job description. So stop feeling guilty and have some shtultz.