As an employer I should have the option of establishing work rules including dress code as long as all are uniformly applied and enforced. If an applicant doesn’t like the rules and code, they can apply elsewhere.
Too much interference by too many different factions in the operation of business today lead many businesses to rethink whether they really want to have employees or even continue to operate. We found our business at this crossroad a couple of years ago and as employees leave we are downsizing and not replacing them.
That is right up there with “we reserve the right to refuse service to anyone”; a relic of the past. Not going to happen anymore.