Why not? They tell US car makers what their products should do. The same for fruit growers, clothes makers and thousands of other businesses selling into the common market. It's called regulation and it's a normal part of modern life.

We're a society of laws and they apply equally to everyone. If you don't like the laws either vote accordingly, talk to your representative, organise a political action, or leave for a more agreeable jurisdiction.

Also, the US fined Airbus $582 million in 2020.

I find it funny them bringing up aviation companies when it feels like every month Boeing appears in the news for something falling off their plan while in flight, be it doors or wheels. That is what happens when you let companies "do what ever they want" and mind you aviation is VERY REGULATED.

The regulatory regime for Boeing has not changed; Boeing has.