In the last ten years, and accelerating dramatically in the last three, this has changed. Big business consolidated and centered on tech and finance. Then it became entrenched. The laptoppers educated at woke universities ported their values into the workplace, gained managerial control, and deployed HR departments as their mechanism of control. The politics of these industries followed, and now it is the base of the Democrats.
https://brownstone.org/articles/patricians-vs-plebeians-the-realignment/
