That’s because those who (our countries that enforce it) eat less, have smaller properties, less productive cars and infrastructure etc, those are the countries that will have the short end of the stick in 10-20 years time - just look at Europe. The tragedy of the commons at a global scale.

> less productive cars

How does enforcing emissions regulations result in less productive cars?

Cars move about 1.5 people per trip on average. A big pickup or SUV is not any more productive doing this task than a mid sized car.