I don't get it either. But I think there's actually only a tiny number of people who are ICEing on purpose to be mean — it just makes headlines because it's scary and seems like a dramatic conflict.
When I took an epic Tesla Model 3 road trip last summer through what I would affectionately refer to as "big truck country", one of the things I was worried about was running into EV haters in the south and the midwest. Especially since my destination was literally a ranch deep in the heart of rural Texas.
It turns out all my worries were completely unfounded. I didn't have any problems at any of the dozens of superchargers I stopped at. Nobody keyed my car or rolled coal at me or tried to run me off the road. In fact, everywhere I went people were really interested in the car and wanted to know more about it.
I had a great conversation about EVs with a retired Trump supporter in a hotel parking lot in Amarillo while supercharging. An old fellow who was mowing the lawn next to a supercharger in Kansas stopped his mower and came over to chat (he wanted to know the car's top speed). My extremely conservative grandparents (owners of the aforementioned ranch) both wanted rides. Grandma said it was the most comfortable car she'd sat in, and after the ride Grandpa asked me if there were any Tesla service centers nearby.
I think there are some people who just like to start fights, and that handful of people would love for there to be drama between EV owners and ICE owners, but the vast majority of people don't care and just think a cool car is a cool car, no matter what's under the hood.