Whenever a group seeks to get their way by interfering with the rights of others, because what they are trying to achieve is "too important" to worry about such "petty" concerns as people's right to freely travel, engage in commerce, and generally pursue happiness - it's time to watch out. Recent (past 200 years) history is filled with example after example of how tragically this ends.

This is not civil disobedience. This is actively attacking other people and putting their lives at risk.

Groups such as this are not doing anything noble, and they do not deserve any admiration, respect, or protection.