Why the USA should have not have been involved in Vietnam

USA should not have gotten involved was because they were there mainly to prevent the Domino theory taking place. They wanted to stop communism from taking over the country, which they feared was going to happen under the influence of Ho Chi Minh (Leader of the nationalist party). The USA was scared that it would be influenced like China, and worse, start a trend spreading to the surrounding countries (Cambodia, Laos, Thailand and more) and then the whole of South-Asia would be a bloc corrupted by communism. They should not have gotten involved because they had no proof. Furthermore, it was predominantly a civil war, and would have been over more quickly with much less bloodshed had the USA not interfered.Many non-communists in Vietnam opposed the Southern government, because it was so corrupt and so oppressive. They chose Ho Chi Minh as their leader not because he had forced them to (like many other communists do) but because they wanted him to be. And Ho Chi Ming was never discovered to be a communist, even though there were great suspicions. The other reason is because of the Anti-War Movement in the United States; the Americans didn’t have a lot of support back at home. At the start of the war, the US president had the American public believing that they had to go to war. Vietnam was communist, and that's all that mattered. Thousands of men believed they were fighting to protect their country. Eventually however, they realised that the entire concept of the war was flawed.The Vietnam War was a media war. Many television, radio and newspaper reporters sent back to America and Europe reports and pictures of the fighting. There were anti-war protests all over the country. American troops started treating Vietnamese civilians roughly, believing, often rightly, that they were helping the Vietcong. At My Lai in March 1968 about 400 civilians were killed.The army tried to cover the massacre up but one soldier reported it. Photographs were found. The news of the massacre deeply shocked American public opinion.