The idea that the only non-compliant people who wear no masks are MAGA supporters is just wrong.
The worst group is college students. Most today are liberal or progressive, yet they either feel they are immune or they believe the disease will not affect them... ignoring the people who will be affected they may take the disease to if they get it.
The second worst group includes less informed people who don't follow news and are skeptical of it. This includes the huge population of undocumented immigrants, a large portion of whom are less educated.
The third group consists of those who don't believe in anything the government says; they can by from any point on the political spectrum.
In general, many who believe themselves to be immune or not dangerously susceptible will disobey the mask and social distancing requirements.