Why did support of the vietnam war begin to dwindle by the late 1960s?

People began to realize that the Vietnam war didn't need to happen. Many people seen it as meaningless. There were many pointless deaths. Protests soon began against the war.

Cherokee  removal, part of the trail of tears, refers to the  forced  relocation between 1836 and 1839 of thecherokee  nation from  their lands ingeorgia, south carolina, north carolina, tennessee, texas, and alabama to the indian territory (present day oklahoma)  in  the thenwestern united states, and the resultant deaths