So - Reddit just updated their content policy in an attempt to deal with hate speech. Inside is this rule.
Marginalized or vulnerable groups include, but are not limited to, groups based on their actual and perceived race, color, religion, national origin, ethnicity, immigration status, gender, gender identity, sexual orientation, pregnancy, or disability. These include victims of a major violent event and their families.
While the rule on hate protects such groups, it does not protect all groups or all forms of identity. For example, the rule does not protect groups of people who are in the majority or who promote such attacks of hate.
The way I read that, you can post hate speech as long as the target of your hate is considered a majority.
EDIT : Thank goodness ! They changed it !
While the rule on hate protects such groups, it does not protect those who promote attacks of hate or who try to hide their hate in bad faith claims of discrimination.