This is a good point. I just returned from North Carolina for the holidays, and I spent a night with my best buddy who I grew up with and is a Trump supporter. Even has Trump 45-47 bumper sticker on back of his truck, which I had to endure following him to his home.
Talking with him and his wife in the kitchen, while making delicious food, however, showed me they're not mindless hate machines.
I still think it largely irrational, because I realized they didn't fully understand things, but listening to them in such an environment helped me better understand the MAGA mindset.
That being said, the generalizations we draw here and elsewhere about MAGA (or conservatives at large) are not necessarily inaccurate.