Fwiw, this is about as low as he's gonna get. The analysis and studies are very clear - the authoritarian personality, which is more or less the key requirement for the necessary level of popular support to run a fascist political project and regime, tends to run at about 30-35% in Pig Empire cultures.
The people Trump has left, are simply the nazis. And you don't waste time and energy trying to convince a nazi of the fundamental incorrectness of their positions - they're nazis, you stomp em.