The early 1930s in Germany before the Nazis came to power were characterized by running street battles between Nazi, Communist, and even Social Democratic extra- parliamentary groups as well ashy  electoral politics. After the Nazi takeover, Social Democrats and Communists were murdered, assaulted, or sent to concentration camps---their original use was political. So your claim that the rise of Nazism was not resisted is simply false. You need to distinguish unsuccessful resistance from no resistance. 
What you are referring to, I assume, is the quite different international appeasement   by Britain and France and the United States of international aggression by Italy, Germany, and Japan, and their , and their  unwillingness to intervene to force Italy, Germany, and Japan to change their domestic policies. Are you suggesting that Canada and other countries apply sanctions to the United States if it doesn't change its domestic policies? Or threaten military action?