Twitter mockery forces Republicans to clarify that Rosa Parks didn't actually end racism

Sunday was Rosa Parks Day, and the Republican National Committee honored the civil rights hero in the best way they knew how:

Today we remember Rosa Parks’ bold stand and her role in ending racism. http://t.co/...
— @GOP

Naturally, this gave birth to some epic Twitter mockery, under the hashtag #RacismEndedWhen, started by @FeministaJones:

#RacismEndedWhen Arnold and Willis were adopted by Mr. Drummond
— @FeministaJones

#RacismEndedWhen another customer at the farmers’ market this morning told me how articulate I seemed. #IUseWordsGud
— @ggreeneva

#RacismEndedWhen this black professor's white students got her reprimanded for discussing race. http://t.co/...
— @DrJaneChi

#RacismEndedWhen barely-literate Hunger Games viewers saw Rue was black & got mad or stopped caring she died http://t.co/...
— @TeacherSabrina

In the face of this, the RNC clarified:

Previous tweet should have read "Today we remember Rosa Parks' bold stand and her role in fighting to end racism."
— @GOP

Wait a minute. Did the Republican Party just admit that we don't live in a post-racial society? Or are they just saying that racism ended at some unspecified point after the Montgomery Bus Boycott? Billmon has a good suggestion for a follow-up, though:

RNC: "And tomorrow we remember the Roberts Court's bold stand and its role in fighting to stop people like Rosa Parks from voting."
— @billmon1