Ive heard many times that Reps and Dems switched ideologies after the 1964 Civil Rights Act, explain?

This is a Liberal lie. The Republican Party has always been better on issues of race. Their beliefs in freedom, Christian Morals, and free markets complimented their beliefs in every person having equal rights. Today, Republicans are fighting another type of racism, affirmative action. This is reverse racism, and is based upon the false theory that Whites are superior to Blacks, which is not true.