I think that most will agree that some rules and laws need to be set in a society but also know that some rules and laws are not right or fair.
We can mostly agree that rules and laws need to be policed but also that the policing of those rules and laws should be appropriate to the rules being broken and that excessive force, violence and oppression shouldn't happen.
We can mostly agree that some form of punishment is often necessarily issued to those who break laws and rules but also think that severity of punishment should correspond to the rules being broken and that often punishments are unfairly given.
And I think that we can also agree that after all the above is considered, that "moral", "right", "just" actions - however one defines these things, can be and sometimes should be taken, regardless of the legal consequences.
Where you draw the line on each of these areas will be different for each person but I think it's fair to say that the largely peaceful student protests have been harrassed, smeared, abused, violently attacked, recieved excessive force, been peanalised and punished far beyond what is reasonable, in a liberal, free, open society. Now if you do want a more oppressive, authoritarian society then you can argue that the action by the politicians and media and police is correct, however if this is what you do want (and I suspect many do), then don't expect to be able to trot out the peaceful, "freedom and democracy" cliches without mockery and pushback. Particularly when you (politicians, media, police enforcement) are regularly seen breaking laws with impunity.