Both Honda and Toyota build certain models in this country in NON-UAW factories. The Honda Odyssey and Accord are built in the U.S. (Not sure about the Civic.)
The Toyota Corolla and Camry are built in the U.S. also in NON-UAW factories. Can't speak to Toyota's other models.
I bought a Toyota Yaris over 6 years ago. I know. She was made in California. Not sure if union made or not.