Hate Crimes, White on Black only?

Why are hate crimes always white on black?  What about black on white?  Spike Jones tweeting the address of Zimmerman should be considered a hate crime.  He was intentionally passing on information to get that man killed.  What about Farrakhan promoting vigilante justice?  Promoting the black community to kill Zimmerman?  What about the other hate mongers like Jackson and King?  Even our illustrious president has jumped in the fray!  When am I being discriminated against?  Go arrest the real hate mongers.  It is a tragedy that that young man was killed.  Do we know what really happened?  Not yet.  Let the cops do their thing and figure it out.  This may be the spark that starts the revolution.  The only question is "Is the tinder dry enough yet?"