The very idea behind "hate crime" and "hate speech" is antithical to the foundations of American culture. If you're assaulted because you happen to be white or black or brown - it does not make the assault somehow more serious. Assault is assault, plain and simple.
That whole "celebrate diversity" thing is nothing more than a concerted effort to ensure that differences among people are recognized and responded to differentially. And that concept mocks the foundation of America, which clearly states that all men are created equal. Those who insist that you should "celebrate diversity" are simply doing their level best to ensure that you will agree to abide by the Orwellian concept that everyone is equal - but some are more equal than others. The idea behind the approach is clear: destroy the concept of America as a Melting Pot, and emphasize differences rather than similarities. This approach allows some people to be more equal than others, depending upon the fad currently in vogue.
And the "celebration of diversity" - in the form of federal hate crime statutes - has already passed in the U.S. House of Representatives and is now pending before the U.S. Senate. If you don't think it's a problem, you really should think again.