It's strange to me that some Americans will cheer on Chinese companies over Tesla, even overlooking those companies questionable labour practices. (I don't know if you're American)
Because distortions of the free market make us all poorer
Why? Tesla has huge quality problems (ranked by far the worst used cars in several countries incl. in Germany), an awful CEO, etc. BYD are better quality and cheaper which is insane.
Because politics bring out the highest emotions in people. We all have strong internal moral compasses and it is very difficult to violate or change them.
More than half of Tesla's cars are built in China so you can hate them for both reasons.