As far as the law goes, a company is allowed to turn down business and trade with any person for any reason
Sexuality, Religion, and Political view.
That means that even if a Christian was denied access to a business or workplace because of their religion, it would not be oppression as it is within the law for the company to do that. And even in that case, the Government would not be oppressing them, the company would. Whereas in middle eastern countries, the people who control the nations(The Government) are the oppressors. Far greater oppressors than those here.
The only kind of oppression in America would be that in the Workplace(Being Harassed), the kind on the street(Also harassment), and the kind at home(abuse).
Other countries have Home Abuse, Workplace Assault and Harassment, Legal Oppression against Religion, Sexuality, and Political views, as well as the Governments right to beat you whenever they wish.
Oppression in America in any field will never compare to that which happens in the middle east.
Christians are not majorly oppressed here. And not nearly as oppressed as we would be if we lived overseas.