First the bug report, you can't do the last focus on the industrial focus tree due to it requiring you to do focuses on both sides of the mutually exclusive set of focuses.

Now the opinion part.

Why do the nationalists welcome the southern kingdom? I big part of nationalism is at the bare minimum distrusting outsiders.
Why are the focuses for attacking other northern countries and the cool end stuff locked off unless you are democratic nationalists? Why do the regular nationalists not wanna secure their backyard?

I didn't really look at the socialist or democratic paths since I don't really care about them.

Also while I'm here, you should really do an end update. Like, you got this cool area that is both super important due to being where the final boss of minecraft is, and to get to it in game, you have to have conquered the free enderman, (Which why only these enderman and no others?), Taken over part of the nether, and have access to one of two portals, and you get nothing for it. The end islands have jack on them, save some pop.