Though wearing a mask in public has some utility for some people, mandating them as a medical device for protection from coronavirus for everyone does not.
How would mask mandates serve an evil agenda, a global conspiracy? Many ways: 1. They could allow agents of the conspiracy to operate with less likelihood of recognition. 2. When combined with "social distancing" they can serve to keep the population psychologically subdued. 3. They could allow agents of the conspiracy to "hide" among the sheep. 4. Improperly used masks can increase the risk of respiratory illness thus prolonging the C19 narrative. 5. Production of masks and their sale can enrich the coffers of some entities in China. 6. The mandates interfere with people's freedom and when combined with "social distancing" effectively influence our ease in exercising Constitutional/natural rights.
My hypothesis: Any person in a position in government or industry who supports mandated masks a likely agent of a global conspiracy.
We know C19 is treatable and/or preventable with readily available medications and nutrients. It preferentially harms the elderly and sick, so only a portion of the public is even at significant risk. We don't know, conclusively, imo, how C19 is transmitted and it may be by water or fecal/oral route meaning, again, wearing masks makes little sense for the reasons stated by those supporting mask mandates.