There's a clear difference between respecting people and hate speech; no project should welcome someone who contributes inappropriate insults and off-topic rants.
If that stereotypical Orthodox Jew wants to be a valuable community member, they can keep their hostile opinions to themselves, and nobody will consider them troublemakers.
Obviously they won't feel welcome because they realize that the majority would despise them as bigots if they expressed intolerable opinions, but hopefully it can become a reason to question their ideology.
I think the distinction is whether they express their views in project settings or in unrelated settings. If they express them in project settings, then I can’t see how that could possibly be on-topic, which makes it disruptive behaviour. But if they express them in unrelated settings, and then someone else brings that to the attention of the project-well, then it has nothing to do with the project, so the project should refuse to get involved
If that stereotypical Orthodox Jew wants to be a valuable community member, they can keep their hostile opinions to themselves, and nobody will consider them troublemakers.
Obviously they won't feel welcome because they realize that the majority would despise them as bigots if they expressed intolerable opinions, but hopefully it can become a reason to question their ideology.