As I said, buying a car is a personal preference. I buy a car because I like it, not because I hate other cars.
1. If you have tried both jap cars and non-jap cars for years, I will listen to your words. Because you have the first-hand experience. But as you posted "I drive none-Japanese cars all the time..."
2. Jap cars are overvalued. Is that because many CHINESE bought them? If you have the data to prove it, show it to us.
3. You like to buy and drive an American car. That doesn't mean you are smart and those who bought jap cars are stupid and wasted their money.
I don't like to discuss which type of car is better. For me that's meanless. I just buy what I like and enjoy it. When I bought a jap car, I won't attack those who have American cars. Because I respect their choices.
If you really want to discuss this, I suggest you use some data and let the number speaks. (Of course, I won't join the discussion)