You are now at the point where you actually just sound confused, disorientated and obsessive. You don’t seem able to understand any questions people are asking you, still less answer them.
Your friend’s choice of religious clothing has nothing to do with anyone’s work attire. It is irrelevant.
Your choice to own a string of pearls has nothing to do with anyone’s work attire. It is also irrelevant.
The clothing of a head teacher or a government minister has nothing to do with your colleagues’ work attire, because they aren’t head teachers or government ministers.
Once again, in simple words: you work in an office without a formal dress code. That means it is NOT inappropriate or unprofessional for your colleagues to wear jeans and t-shirts because they are following your employer’s directive to employees to wear whatever they like, as are you.
If you behave and communicate at work in the way you’re behaving and communicating here, I feel very sorry for the colleges around you because you give every impression of being rude, self-centred, unable to to hold a reasonable conversation and incapable of focusing on getting a job done because you’re too busy obsessing about something that your employer doesn’t seem important. You are the epitome of unprofessional, whether you wear a suit to work or not.