“Demagogues and agitators are very unpleasant, they are incidental to a free and constitutional country, and you must put up with these inconveniences or do without many important advantages.”

Not in time of war. In time of war, if they also merit the label of traitor they need to be dealt with accordingly.

People must stand up for what they believe in. Civilization is built upon the battle of wills. Perhaps one day civilization's ideals will be in harmony with the will of Nature. Until then, we all have got to do, what we have got to do. Death is a milder fate than tyranny.

Archer said well.One of the most fundamental principles that American jurisprudence is based on is to love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you while understanding morality can not be legislated.

So, what happens when everyone is a demagogue? It would seem there would be no "important advantages" left.

Mr Disraeli, in my interpretation appears to be stating that without the mentally disordered we could not achieve the status of mental orderliness. Feasible quite feasible.