That was over half a century ago. The state and media apparatus are different now. A local jail isn’t going to run out of capacity, now they just call in buses from nearby prisons. The msm ignores, distorts, or outright lies about you when they don’t like your objective.
The civil disobedience was a tiny part of the whole action. Same with Rosa Parks, the organizers looked into these people’s backgrounds so the media would have difficulty portraying it negatively and communicated with aligned newspapers beforehand to ensure enough favorable coverage so they’d have the first word.
These actions weren’t done in isolation. The point of peaceful protest is to create a credible threat and offer a more peaceful alternative. The civil rights act wasn’t passed because the oppressor just had a change of heart, it was passed after every city burned for a week after MLK’s assassination when politicians saw people who looked just like them getting beaten to death in the streets.