The show's idealized portrait of Trump's white racist supporters has been more widely promoted by hopeful leftists and liberals refusing to accept that they are for the most part politically irredeemable.
If the conservative Republican base has not embraced fascist ideologies and parties, it is mainly because current conditions have not plumbed the depths of the 30's, and capitalist ruling classes have not found it necessary to support a turn to fascism to counter a perceived existential threat from the left as in Germany, Italy, Spain, and elsewhere during that period.