Earlier quoted context omitted.
You are being unpleasant. But even short an ability of the federal government to unilaterally require masks, it can exert a lot of soft power on the states by having a unified and full-throated position. The CDC, OSHA, federal funding incentives, and just having persuasive leadership that doesn't politicize compassionate mask wearing.
Heck, having a president who says masks are important and is seen wearing one in public most of the time and not saying things like "you can wear a mask if you want to, me personally, I'm not going to" would go a long, long way. However, I'm afraid that the cat is already out of the bag and many weak minds have been poisoned that wearing a mask somehow infringes rights or doesn't do anything.
Negative belief in at least the current reality of the pandemic (if not the historical reality of the disease itself), as well as in mitigation measures like masking, has become an important tribal identity marker. That's going to be difficult to counteract, and probably doesn't work on a rational level (that is, even if you could convince someone that the overt rationale was wrong, that would be more likely to prompt a shift in rationalization than a shift in belief.)