Yes, the EU does have a right to decide how they do business in their borders.
However, the American people also have a right to re-evaluate their level of friendship and support for a government that is constantly abusing American companies.
In most cases it's not even censorship -- it's just some combination of an attempt to squeeze these non-EU companies for as much as they can get and good old fashioned virtue signaling about protecting consumers from things that most people couldn't care less about.
Yes, the EU does have a right to decide how they do business in their borders.
However, the American people also have a right to re-evaluate their level of friendship and support for a government that is constantly abusing American companies.