Under democratic society,every one is equal,should obey the law and rule.
Students should know their limitation and rights,to open the national meeting including the agenda and participants are not what they can control but they can suggest and request for the authority to consider.
The police should do their duties whatever the law and order assigned,Mr.Wang,JP shall set the date to ask students to leave to avoid been arrested by the force.
The congress shall perform their duties to do whatever they are asked by the people to act.
You are absolutely correct. It was for that reason that USA had taken 100 years to transform from the chaotic decentralized democratic republianism of Jeffersonian model to the highly centralized and somewhat dictatorial Hamiltonian model of the republican government. Unfortunately, such a hard learnt lesson has been lost to many slogan chanting dogmatists in Taiwan.
Those students are just receptive kids mimicking the violent behaviors of adults in Taiwan debating with each other routinely demonstrated on TV in full view of the public in Taiwan's legislative forum. Like the old saying, like father, like son. Sadly, there are no lack of the apologists for this type of brutish, disgusting and disgraceful, not to mention pseudo democratic violence, I mean, "debates".