Full hijab has nothing to do with religion. In the West, it's a middle finger directed at our culture. A gesture of contempt, not piety.
Perhaps, kufir are “unfit” to gaze on their women.
I know a nurse who said she was instructed never to look at the Saudi male patients in the eyes as it was “offensive” for a woman to do that.
I wonder if they had a similar demand that they not receive any “Jews blood” while in the hospital.