You dont think that’s middle class? Because you have to work to not run out of money?
So do most of the upper classes. What you have the luxury of an education that allows them some freedom to work, and the comforts of knowledge work that allow them to not have to sacrifice their physical health and, most likely an income bracket that at least affords you some choice in where you live.
The point is that high levels of migration, effectively forces your own countries working classes to compete with and deal with tons of cheap foreign labour coming in, with little or no conformity to the parent culture because it hasn’t been facilitated. The middle classes traditionally laugh at the working classes and claim they are being “racist”, “stupid” and “lazy” for complaining about this arrangement, while mostly avoiding it’s effects themselves.
This voting is a result of the left wing, middle classes being unable to grasp the obvious effects of their voting record, instead pretending to each other in echo chambers that they are the real working classes and how shocking all this right wing-tilt is. Throwing the incumbent working class culture under a bus.