What is nationalism, again and how it would work in my realm to make the whole work

I don't think this is very hard to understand nor to explain.

First, it's devised in nation. All human group are devised in nation. And to understand how it is cut, we need to know history and other things like the production.

Than we all live in co citizen in the same nation. We work together to live good and have everything we need. Now if everybody is agree with this, maybe we could become communist but until this happens we could be socialist with income class.

So simple as that. We all work to make it work. Not rape and steal to get our cock suck or to stop working.

I think they have a large move to do to achieve what I'm saying.