Hate speech is free speech.  If we don't protect speech which offends, what's worth protecting?  To incite to violence is to cross a line but being offended by what someone says....that's your right as an American.

“When facism comes to America it will be wrapped in the flag and carrying a cross.”  Sinclair Lewis

Q: I just can't understand why the ACLU defends free speech for racists, sexists, homophobes and other bigots. Why tolerate the promotion of intolerance? 

A: Free speech rights are indivisible. Restricting the speech of one group or individual jeopardizes everyone's rights because the same laws or regulations used to silence bigots can be used to silence you. Conversely, laws that defend free speech for bigots can be used to defend the rights of civil rights workers, anti-war protesters, lesbian and gay activists and others fighting for justice. For example, in the 1949 case of Terminiello v. Chicago, the ACLU successfully defended an ex-Catholic priest who had delivered a racist and anti-semitic speech. The precedent set in that case became the basis for the ACLU's successful defense of civil rights demonstrators in the 1960s and '70s. 

The indivisibility principle was also illustrated in the case of Neo-Nazis whose right to march in Skokie, Illinois in 1979 was successfully defended by the ACLU. At the time, then ACLU Executive Director Aryeh Neier, whose relatives died in Hitler's concentration camps during World War II, commented: "Keeping a few Nazis off the streets of Skokie will serve Jews poorly if it means that the freedoms to speak, publish or assemble any place in the United States are thereby weakened."