Bigotry has no supporting arguments.
Bigotry is the lack of argument and rational thinking. It's ignorance directed by hate.
The sense of entitlement that a bigot possesses to impose his hate onto society is an infantile characteristic, a projection of hate often accompanied by seeking a society-wide entitlement for their self loathing.
Civil rights workers are typically concerned about the rights of blacks and gays, women and Arabs, Jews and defendants.
Bigots are more unpredictable, though often they are big supporters of guns and violence.
Frank Rich discusses the gay civil rights movement 40 years after Stonewall.