True enough attempts to rally the Trades Unions and the left to oppose the war failed. And the same happened in Germany.

That's the madness of war fever.

Once a war is declared there's virtually always a surge of support. However Ill conceived and disastrous it turns out to be.

Nothing has changed there really.

The really crazy and criminal thing is that after the Schlieffen Plan failed there wasn't a rapid Armistice. But the fact that at that time the war was popular on both sides got in the way of anything like that.