Read the document carefully, what is debs's or schenck's main message? what does he try to convince his audience?

Debs main message to the audience was that of democracy war that insisted that people were being waged in order to make the world a better and safe place for democracy at the expense of oppressing others. Those who fought for the exploited victims were regarded as disloyal or traitors to their land.
Debs attempts to convince that it's not worth to send people to war for the sake o democracy since democracy itself cannot be forced into any nation but rather it should come pure and spontaneously.

Debs' primary point to the crowd was that people were fighting for democracy in order to make the world a better and safer environment for democracy at the expense of oppressing others.

Deb's message:

Those who campaigned for the exploited victims were considered disloyal to their country or traitors.Debs tries to persuade us that it is pointless to send people to war for the sake of democracy, because democracy cannot be forced into any country, but must emerge naturally.

For more information about Deb's or Schenck's refer to the link:

link

One key element is humour! the man probably represents a politician or worker!