Repeal is a nice way of saying it. The anti-miscegenation laws of course were not repealed in 1967, they were found unconstitutional on June 12, 1967 when the Supreme Court heard the case Lovings vs Virginia. This is an important distinction because while it meant the laws were unenforceable, it did not mean they were repealed by the states. 17 states still enforced laws prohibiting mixed racial marriages in 1967 all from the South. Only Maryland repealed its law in response to the Supreme Court case. South Carolina repealed it's law in 1998. Alabama, amended it's constitution in the year 2000. And of coarse in 2009 a Louisiana justice of the peace refused to officiate a civil wedding because the couple was interracial. ( Governor Bobby Jindal and strong criticism forced his resignation in the same year.)
And while I disagree with the Jeff's comments that the KKK was not politically active or powerful organization in 67, they were under siege on multiple fronts at that time and in following years.
The 1964 murders of Chaney, Goodman, and Schwerner, three civil rights workers, in Mississippi. Put a huge public spot light on Klan activity.
In 1965, the House Un-American Activities Committee(*) started an investigation on the Klan, putting in the public spotlight its front organizations, finances, methods and divisions
In 1968 of coarse President Johnson, a life long segregationist, passed the most sweeping civil rights bill in US history. The 1968 civl rights act
KKK groups began to oppose:
- court-ordered busing to desegregate schools
- affirmative action laws
- more open immigration
- legislation prohibiting legal segregation
- voting rights laws
The Klans resources were dwindling, and the number of issues they were against was mushrooming.
There were several prominent bombings and murders conducted by the Klan in 1967 but these were targeting the civil rights movement and its functionaries. This is not to say interracial couples experienced no prejudice. It’s likely most avoided the south knowing the possible consequences. Those who did not and experienced the consequences would likely be chalked up to general rampant racism rather than Klan activity.
(*)"Ku Klux Klan Probe Begun". CQ Almanac (21 ed.). Washington, DC: 1517–1525. 1965.