A good many men stated that "if they didn't have to go through boot camp, they'd go to Vietnam." So basically they feared boot camp and/or they feared military service.
From 1965-1975 (the '75 list for valid arrest warrants) approximately 22,500 draft dodgers were indicted. Approximately 8,800 men were convicted. Approximately 4,000 were imprisoned.
There were...
About 100,000 Americans went to other countries, or remained in hiding in the United States; about 50% to 90% of these are believed to have gone to Canada.
According to official Canadian estimates...