The ones that support him are the ones that have their bread buttered in some way by the left.
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His supporters come from all sectors of society - from the ‘gimme-dats’, to teachers, state/fed workers, researchers, hospital personnel, academics, etc., - those who have a pretty much guaranteed job and cannot be fired.
All/most of my conservative contacts work in the private sector. Different ethic, different outlook.
And more and more the rest of us have been frozen out of those career zones.