Not to mention that the coastal areas attracts all kinds of White and Non-White tourists.
The North of Paraná (at least the North Central area of Paraná) has a considerable amount of Whites (people who can pass in S. Europe no trouble, perhaps some 40-50%), comparable to the interior of São Paulo, the problem is that the non-whites there are also many.
The only way to improve the situation in this region is to take advantage of the affinity of this region with the Interior of São Paulo and bring the largest number of 90%+ Europeans of this area. If Northern Paraná had a foreign born of 90%+ Europeans in the order of 50% or even 100%, this would become a nice region. Then, all that remains is to build some barrier with the rest of the country.
The same for Southern RS, even the Pelotas Region is prob. almost 80% European (which is pretty high for Latin America standards) if the South of the RS receive 1 million of 90%+ Europeans of Uruguay and Argentina, it could actually get whiter and better. The rest would be to provide birth control policies for the lower classes, especially in the large cities, and pro-White policies as well. This should give our future and new country the best potential in Latin America, at least regading human capital.
It would be interesting to keep some regions close to 100% European as well. Let the multiculturalism to big cities like my city or Porto Alegre. Blacks are a danger we need to deal with, most of the Southern population has nothing to do with them and slavery, may they go to shit with the crude victimism and sensitivity of them or go to Bahia, which is the place of Blacks itself. I also do not go with Mestizos and other Hispanics, they have usually have more children than they should have and are like a nation itself, where they have one, they want more Mestizos.
I personally I prefer the idea of ethno-state in the manner as I had said before, maintaining a 'semi-European' (~90% European as whole) country with over 70 million inhabitants. We would have population, internal consumption, generation of ideas, 'big' population to have even more influence than Brasil now.
I think that would be impossible, though. I am in favor of expanding the territory and annexing Uruguay as well, I think if we had a much better country there would be no objection from them and we would have even more land.
PD: If I had to choose one population between Afrikaners and Iberians to be part of this new country of course I would choose the Afrikaners before Iberians for sure, even though the latter are more "European" than the first, but we are in Latin America, we wouldn't have so much to choose. I just hope they don't bring the plague of the Iberian and Iberian-American mentality here, those who think that Brazil is a model of country, stay in that shit.
It would be cool if all of this to happen, things look worse than they are because we are in Brazil, but every country in The Americas except maybe Canada and some parts of the United States is not in a better position than that, if compared to Latin America then...