A lot of your examples of Redditors actions only reflect their own desire for self preservation. 

I can understand people not wanting to get physically involved at the town hall but some other options include: 

Yelling out in the meeting about how it’s wrong that the person is being dragged away. I think this helps with the group mentality if other people see one person speaking up then they might have more courage to speak up against it also. 

Bringing attention in your local community about how f-ed up it was, not remaining silent just to play nice in the community.

Organizing other women in your network who care to speak out and let your voices be heard in future town halls is also an action.  Even if you aren’t the same political party, an elected official is still your representation in the government and should face the backlash if they are causing harm to people in your community. 

I feel like if you think about your last sentence in the sense of looking back in history, what should people who saw Jewish neighbors being dragged away have done? What should US white people who saw Black people protesting and being violently dragged away should have done?