What won't change is the risk profile of wearing vs not wearing a mask. Wearing a mask despite necessity is an inconvenience, but unlikely to result in harm. Not wearing mask, even if current science says is safe to do so, is still exposure to potential harm that may have been unforeseen. For instance a transmission vector that is not yet a well characterized one. This is why I personally take a dim view to these sorts "following the science" arguments.
You're right that it's political - except that it has actual detrimental consequences to society to normalize doing unnecessary things, especially when your goal is expressly to divide people (as that's literally the main thrust of what what "political statements" in the form of virtue signalling accomplish).
Rational, well-informed people should wear masks indoors and in busy outdoor areas, and enjoy some fresh air when they can get away from that. Wearing a mask when you don't need to to "reinforce" unnecessary behaviour is irrational, and will continue to make anyone who is anti-mask think that you're not approaching the situation reasonably.
It really bothers me when the CEO of that health company was being harrassed for not wearing a mask after he has recovered from an infection, the mask would do nothing for him or anybody else, but he wasn’t using it as a political statement so he was doing wrong?
Some kinds of signaling are useless at best, problematic at worst. But wearing a mask even if you believe you technically don't require one to avoid being contagious seems like a common sense way to promote community during a stressful time to be around strangers - they don't know you, they don't know your medical history, they have no way of knowing when you wait near eachother in the grocery checkout line whether you're carrying antibodies and presumably not capable of being contagious or whether you're just flagrantly ignoring public health advice.
(Ignoring, of course, the subset of people who would inevitably falsely assume they were not capable of being contagious for whatever reasons even if they really could be... we probably all know that friend who swears they had COVID earlier in the year, but did not get tested at the time and have not had an antibody test since to verify. Do we really want those people getting the idea that their anecdotal illness is an opt-out from face coverings in public?)
The many interpretations of public health messaging around the world have shown us pretty well over the last 8 months that many people do really poorly with developing science and/or nuance. "Wear your mask in public, always" removes a lot of room for error, either malicious or just misinformed.
Best of luck pointing to the actual study. Are you going to print it out and carry it with you?
Please understand, I'm not criticizing you -- except to maybe point out that you place an awful lot of unfounded faith in your fellow human beings.