There have been some, though it is a small number, on these threads who've advocated a return to those days.
Recall it was Roman Catholicism who made the Jews and Muslims wear ID on their clothing so they could be identified.
Canon 68 (Ut Iudaei discernantur a christianis in habitu or That Jews should be distinguished from Christians in their dress): Mandated a special dress code for Jews and Saracens to distinguish them from Christians so that no Christian shall come to marry them ignorant of who they are. Fourth Council of the Lateran 1213-1215
To my knowledge these canons have not been overturned.
Thanks for responding.
5.56mm