I think this raises a good point about the prudence of requiring any kind of statement on apparel. I know people who are pro Palestinian that might not be keen on wearing an antisemitism pin (and yes, I know one can be against antisemitism and pro Palestinian, but someone might suspect that an antisemitism pin suggests support for Israel's policies in current time), people who would not want to wear a cross or rainbow flag or BLM apparel (not because of racism but because of attitudes toward many profiting off of BLM), and so on. A person shouldn't b eput in a place where their motives for not participating in something can be held against them without being known, when the cause is not directly related to the job they are doing.