Why did the Social Democrats, Communists and Industrail workers oppose Nazi rule?
actually they didn’t most of the communists and industrial workers joined the nazi party. The ones who opposed the nazis were the heads of the communists- since they were losing power (or even the prospect of ever gaining power) the rank-and-file communists and workers were promised exactly the same thing that the communists promised- except that they actually got it from the nazis. one state control over everything, free health care, free paid holidays and enough economic freedom to keep everyone happy.