Still, there are rich & poor people among them, entrepreneurs & unemployed. Yet they all don’t want to vote republican, save for a few exceptions.
Looking at your link (great stuff), the most telling demographic traits (5%+ share, 60%+ lean):
- Age 18-29: 61% Biden
- Protestant: 61% Trump
- Latino race: 63% Biden
- Urban: 65% Biden
- Rural: 65% Trump
- Atheist: 72% Biden
- Black race: 90% Biden
Easily the most prominent demographic trait to determine voting preference is belonging to the black race. By the way, notice how Biden attracts voters of certain demographical traits, but Trumps voters are more spread out.