I don't think that's how protected classes work. "Person of color" is a protected class. "Racist" is not. "Christian" is (perhaps, I'm not sure) a protected class. "Person who hates Christians" is not.
"Christian" is a protected class. From Wikipedia[1], the list is:
- Race
- Color
- Religion
- National origin
- Age (40 and over)
- Sex
- Pregnancy
- Citizenship
- Familial status
- Disability status
- Veteran status
- Genetic information
- Race - Color - Religion - National origin - Age (40 and over) - Sex - Pregnancy - Citizenship - Familial status - Disability status - Veteran status - Genetic information
[1]: http://en.wikipedia.org/wiki/Protected_class