My understanding of why these Muslims require their women to have guardians is not for their women's protection, but it is because they do not trust their women to conduct themselves properly if left alone and without male supervision.
Well, when I read about airlines that will not seat females or children next to single males, on what I have to assume is the belief that men are routinely bestial, Islamic misogyny is western PC civ in high heels and dancing backwards.
Its like the old catholic joke about why Nuns traveled in pairs. So one Nun could watch the other Nun , to see she didnt get None.
They actually don't trust THEMSELVES to be able to control their impulses.