EU referendum, brexit and the aftermath

If I understand things correctly, Brexit voters together are made up of at least 4 different groups:

1. Far right types motivated by anti Islamic sentiments
   
2. Wealthy aristocratic types (and aspirational aristocrats) wanting to take the U.K. back to feudalism, concentrating power
   
3. Retirees who are no longer in the economy and don’t need to think about their future income
   
4. The disenfranchised non-Londoners who have few skills and are at greatest risk from freedom of movement.
   
   

Did I miss anyone? Which ones are really motivated by racism?