Civil War and Revolutionary War

After reading BCOF I am amazed at the numbers of casualties compared to the Revolutionary War. Washington barely had more than 10,000 men at any of his battles while at many Civil War battles there were upwards of 100,000 men who fought for the Federal Army and about 60,000 men fighting for the Confederates. (At Cold Harbor, page 733) At this battle there were about 69,000 casualties between both sides. Wow! I wonder what it would have been like if they had the mass media back then like we have it today. Would there have been an outrage about the loss of life? Would the general population demand an end to the war? Would the north or south concede in any way?