The poster did not state that "people are stupid. These types of extremist interpretations are the reason it is difficult to have informative discussions on social media.
Actually, that is not really the case. What many are actually saying is that masks have limited efficacy. This is supported by science, and is readily observable in everyday life. And masks we never meant to stop the virus anyway; it was to slow the spread.
Even in states with draconian mask and lockdown policies like the one I am in, the cases continue in a dramatic way. We have more daily cases now than the first wave, when there was much less mask wearing and enforcement.