Gradual end. There was still fighting even after US withdrawal. The war did ultimately end.
The larger goal was uniting Americans around the war effort.
Cracking down on dissent would be a negative action in support of the larger, positive goal the government sought. The government wanted a fully united public in support of the war, and so it put out the message that that freedom of speech might have its limits in times of war.
The India Gate commemorates D)British Indian Army soldiers who fought in World War I. It is a war memorial in New Delhi and was established on February 10th, 1921. It is there to represent 82,000 soldiers who died in many different wars fighting for the British Indian Army.