The difference isn't entirely rational, it's that one is a sudden shock and one is (a horrifying) normal.
When something is new and shocking, immediate extensive resistance can blunt the impact of new policies. That would work in the case of horrifying normal situations too, but there's no universal focal point, and focal points around which people can gather matter a lot. Given the existence of a focal point, it becomes rational to protest since others will join you.
When something is new and shocking, immediate extensive resistance can blunt the impact of new policies. That would work in the case of horrifying normal situations too, but there's no universal focal point, and focal points around which people can gather matter a lot. Given the existence of a focal point, it becomes rational to protest since others will join you.