all the Southern racists that voted against Civil Rights fled to the Republican party.
I guess you missed the part where KKK member and Democrat Robert Byrd filibustered the legislation and never left the Democratic party.
Here's a list of the Democratic members that participated in the filibuster led by Byrd
Democrat Senators organized the record Senate filibuster of the Civil Rights Act of 1964. Included among the organizers were several prominent and well known liberal Democrat standard bearers including:
- Robert Byrd, current senator from West Virginia
- J. William Fulbright, Arkansas senator and political mentor of Bill Clinton
- Albert Gore Sr., Tennessee senator, father and political mentor of Al Gore.
Gore Jr. has been known to lie about his father's opposition to the Civil Rights Act.
- Sam Ervin, North Carolina senator of Watergate hearings fame
- Richard Russell, famed Georgia senator and later President Pro Tempore
If I'm not mistaken, which I could be, none of these men fled the Democratic party.
A little more info on both civil rights acts:
Democrat opposition to the Civil Rights Act was substantial enough to literally split the party in two.
A whopping 40% of the House Democrats VOTED AGAINST the Civil Rights Act,
while 80% of Republicans SUPPORTED it.
Republican support in the Senate was even higher. Similar trends occurred with the Voting Rights Act of 1965, which was supported by 82% of House Republicans and 94% of Senate Republicans. The same Democrat standard bearers took their normal racists stances, this time with Senator Fulbright leading the opposition effort.
It took the hard work of Republican Senate Minority Leader Everett Dirksen and Republican Whip Thomas Kuchel to pass the Civil Rights Act
(Dirksen was presented a civil rights accomplishment award for the year by the head of the NAACP in recognition of his efforts). Upon breaking the Democrat filibuster of the 1964 Civil Rights Act, Republican Dirksen took to the Senate floor and exclaimed "The time has come for equality of opportunity in sharing in government, in education, and in employment. It will not be stayed or denied. It is here!" Sadly, Democrats and revisionist historians have all but forgotten (and intentionally so) that it was Republican Dirksen, not the divided Democrats, who made the Civil Rights Act a reality. Dirksen also broke the Democrat filibuster of the 1957 Civil Rights Act that was signed by Republican President Eisenhower.
So, just to clarify, I don't think it went down exactly how you suggest it did.