Conservatives by and large are white. They seem to yearn for this nostalgic past where white America dominated the landscape of this country in every way, and all other minorities were subservient to them. They do not understand the world they live in today, and respond with fear, hatred, and bigotry. The Republican party understands this full well and plays to their fears with false bogeyman all the time.
The sad reality is Conservatism has been on the wrong side of history every single time. Whether it's segregation, civil rights, gay rights, abortion, etc. You've lost every single time. You were WRONG every single time.
America is moving away from your kind of small minded thinking. It won't be too long before the Southern Strategy is no longer viable for Presidential candidates, and when that truly happens the Republican party is in deep shit.