The disrespect displayed in the video was by the adult. NOT the students. (My copy and paste did not adequately work.)
Part of the problem is the panoply of laws passed by federal government, states, counties, cities, etc. Law enforcement is overwhelmed and cannot possible enforce them all so they choose not to enforce some laws, thus promoting disrespect for all laws. Someone also observed that there are so many laws that the average person commits a felony or two every day. Ignorance of the law used to be no excuse, but a good case can be made for this argument. No one can be expected to be knowledgeable about all laws, another reason for disrespect of the law.
I am located in an ultra liberal state (Washington) and am beginning to feel that this election may be a watershed event where people say to hell with liberal doctrine.
I could be wrong, but there are signs. If this is true, then there could be an electoral sea change about to happen that will foreshadow the 2020 elections.