Hitlers ideal of men was for them to be manly and should either be servers or suppliers, that means that men either had to go and serve time in the forces or to supply for their country e.g factory work. 18 years olds had to go to camps where they would do manual labour for things that benefited their country, the most common job was cutting down trees to make space for more housing in Germany.

Women didn't really oppose to anything since they got paid 600 marks (Rutten Marks) to leave their job to get married and have children and if they had 2 children they wouldn't have to repay the loan. During war though they needed women to work towards the war effort but many declined but nothing ever happened to them

If men/teens they opposed to their labour they most likely would have been sent to concentration camps

The people who did oppose were mostly kids and other political parties, some kids opposed the Hitler youth program so much they would beat up the youth on marches and one group know as the pirates were killed because they beat a Hitler youth member to death. After the Reichstag fire when hitler (who was the chancellor at the time) passed the enabling law he banned all political parties and any parties still standing and or people that still stood for their parties went to concentration camps, remember, concentration camps were where people were worked to death and not gassed, the Wansee conference came up with the final solution which was death camps were they gassed people.

Hitler didn't just gas everyone that didn't do what they was supposed to which many people believe, many people who took part in passive resistance e.g like not saluting Hitler were often left alone.

I hope that answers your question, i didn't want to make it too long so i kept it as short as a could without going on a ramble.

I'll write something about conscientious objectors now and if I have time I'll follow up with a post about defectors tomorrow.

Refusal to serve in the military became an issue the moment the draft had been introduced in 1935. Thereafter the overwhelming majority of conscientious objectors was comprised of members of religious groups with Jehovas Witnesses being the largest. Secular pacifists were obviously also among those who refused to serve, but their organizations had been dissolved in 1933 and many members were already in concentration camps by 1935 (the most famous being Carl von Ossietzky, who was awarded the Nobel Peace Prize while imprisoned).

Up to 1939 cases were dealt with on the basis of the military penal code which led to prison terms. In 1939 a new law was passed which deemed refusal to serve as "Wehrkraftzersetzung" ("subversion of the war effort" is the translation one source suggested). Its definition was deliberately vague and in theory as well as in reality just making negative comments or jokes about the army could have been considered as such. But the law definitely applied to conscientious objectors and the principal penalty outlined was death with long prison terms as a secondary option (which was used very rarely if at all). Very often they were put into concentration camps first and then given a second chance to enlist (which would have landed them in battalions that were deliberately send on suicide missions). Further refusal would then have led to execution.