1.
Any short or long-term strike action would hurt the protestors more than the government due to lack of food and welfare.
2. Violence against Pro government folk is bad. However there has also been a lot of documented instances of Pro government forces being dressed as protestors and sparking violence.
From what I've seen it all started remarkably peaceful and had since been escalated to a position where the government has free rein. Not something the protestors wanted.