Hard disagree
Can you find me a single example in history of fascism arising in a Democracy without the working class being under extreme enough pressure to make fascist strongman rhetoric appealing?
Or are you arguing that the Democrats don't have a track record of hard Neoliberalism, or that that Neoliberalism isn't the cause of the working class pressure that led to Trump?
Come back after you've spent some actual time in the real world, and get some context for how social change works.
Ten years in the trenches working for Progressive Democrats' campaigns and seeing how the party functions from the inside was the real world. You should try it. Go volunteer for your local DSA. More importantly, start showing up to local Democratic Party meetings. See who weilds power there and how they do it. With the way things are going, it won't even take you ten years to realize how utterly futile it is to expect the Democratic Party to fight fascism in any effective sense.