The liberal framework cannot explain why millions of people support Trump because it refuses to acknowledge that capitalism itself generates such movements.
This is why we see liberals using increasingly mystical language (cult). Liberals reduce the Trump phenomenon to irrational devotion to a demagogue, framing it as a psychological or cultural pathology rather than a political response to material conditions. This obscures the fact that Trump's base is not a brainwashed sect but a coalition of reactionary class forces—primarily the petty bourgeoisie, sections of the labor aristocracy, and segments of the bourgeoisie itself—whose interests align with right-wing populism in the face of capitalist crisis.
By calling it a "cult," liberals dismiss the genuine (if misguided) grievances of workers who have been destroyed by neoliberalism.
I'm not sure what you're getting at here. Just because a response to changing conditions is irrational doesn't mean it is not a response to changing conditions. It seems like you're arguing that Trump supporters give their support to Trump because they think he will ruin the economy, but that's obviously not the case. One of the Trump camp's main arguments is his economic aptitude (whether or not you believe that is complete bullshit). The undeniable reality is that Trump supporters truly believe he is going to save the economy even if you (perhaps rightly) think tariffs are going to cause massive damage.