What I'm saying that if doesn't say that he's a Nazi, we can't do anything about because we wouldn't know that he's a Nazi. It'd be fine and dandy if we could let Nazis say their views and just get on with our day with nothing happening, but as we saw with World War II, letting Nazis grow and fester doesn't turn out well.

It begins with oppressing the people to the ideology, because people are not willing to accept it. You're using the end to justify the means, and it is no different from any other ideology that's forcing people to do what they don't want to, because in the end there's peace anyway, as non-willing people are either oppressed or dead. Why would communism be any better than national socialism? In the end everyone's happy anyway, it's only the road to the end that's painful.

And that sounds like a strange sort of democratic totalitarian state, where the government even control what people are allowed to express in terms of ideology. Right-wing extremism doesn't grow because they express their views, they grow because of economic inequality, unemployment, lesser quality education and opportunism. You won't combat those with promoting a model where the government even govern people's opinions.

My point was that apathy is already alive and well in the current society. Besides, when we don't have to worry about when our next paycheck is coming, or whether or not we can afford to pay the bills, we can use that energy to think of things that we actually enjoy.

So, we wouldn't need to worry if people are doing what they actually enjoy instead of making energy and food people need to live their lives?

(1) My point was that apathy is already alive and well in the current society. (2) Besides, when we don't have to worry about when our next paycheck is coming, or whether or not we can afford to pay the bills, we can use that energy to think of things that we actually enjoy.

Maybe people are not willing to accept it now, but I'm not expecting it to happen now. It'll only work when/if a majority is supportive of the transition to socialism/communism.

(1) Apathy in society is like "people being hungry" in the sense that it can't be cured completely. It can only be lessened. 

(2) What is your point with this part?

As I already said, it's easy support something when you know it's not going to happen. Yes, the majority would need to oppress the rest into communism. What would make it better than national socialism? The result in the end is the same anyway, everyone's happy and those that aren't, are either dead or oppressed. But the majority is happy. 

My point is that unlike what you're insinuating, we'd actually be happier.