It is reprehensible, but I don't think it qualifies as a hate crime. From my work on bias crimes, in WY:

When any one person is assaulted, threatened, or their property damaged because of their membership or perceived membership in a particular group, every member of that group is affected. The crime was committed against, not only that person, but a whole class of people.

In this case, I don't think a whole class of people, i.e. whites, feel threatened.