As you say protected class is a very US specific, but even there it actually depend on the state as they can and in some places has extended it. Protected class under federal law is one list and protected class under state law is an other.
Protected class does also not mean that everyone else if a free target for discrimination, and for international companies there is the European Convention on Human Rights. Refusing service based on politics require the company to do a quite complicated dance around a long list of laws and I doubt any company lawyer would be very happy to give a green light for it.
Protected class does also not mean that everyone else if a free target for discrimination, and for international companies there is the European Convention on Human Rights. Refusing service based on politics require the company to do a quite complicated dance around a long list of laws and I doubt any company lawyer would be very happy to give a green light for it.