It is simple, if you want to sell at a market you follow their rules and regulations. Just make better cars that people want to buy, and produce foot that is healthy and doesn't generate generations of fat unhealthy people and the sales will follow. Bullying your way in, isn't going to work as the consumers still won't buy it.
We do not know. I think last time I was in EuropeI met lots of people who really liked the old kitchy American cars with velour covered comfy seats etc. They would love to own such vehicles - maybe even more because they are probably outlawed by TUV test results. I understand what you are saying, and I do not know why the US makers could not comply - sounds like poor management. Yeah, so where does that really leave us? Now we have pressure for opening up the market despite the possibly valid reasons for basically outlawing American automobiles. It even trickles down to attacking American companies like Apple and make EU cash grabs for USB-C and Monopolies that come about from American innovation. It's like another form of jealousy - that's how we can interpret it. Right or Wrong, America is always right.