I salute this community!

I had first registered here quite a long time ago, but for various reasons my participation in the life of this forum remained negligible. I've decided to give it (and myself) another chance.

I'm a Russian law school graduate with faily broad (if perhaps temerariously so) philosophical interests, won for Thomism through the work of Dr. Feser and Dr. Oderberg, but also indebted to Fr. Brian Davies O.P., various manualists, some regulars at Dr. Feser's blog and, naturally, the Angelic Doctor himself.
I'm also a Catholic convert of four years, identifying as broadly traditionalist and belonging to the Latin Roman rite.

I hesitate to describe my political views as either left or right, but I seem to be more acutely concerned with honouring the principles of subsidiarity and solidarity (rather than, say, egalitarian goals), this concern being followed by sympathies towards distributism and perhaps even things like "Red Toryism". It should be noted, however, that I don't really follow the news all that much nowadays, which, I suppose, makes me a "docrtrinnaire" of sorts. Fittingly, I am a monarchist.

It so happens that at the moment my self-editing capacity is suboptimal at best, so to my shame Russianisms and punctuation errors are likely to break through and remain, but I intend to do my best to avoid the more atrocious affronts to English letters.

P.S.

I sometimes comment at Dr. Feser's blog under the name of "Georgy Mancz".

P.S.S.

The monstrously looking word in the heading is a transliteration of a common Russian greeting.

@Dennis

I think a more pertinent question to ask here would be "what reason is there to believe the truth of that proposition"? What is the evidence for the claim?
It doesn't seem to follow from the first principles such as PI, PSR/conceding the intrinsic intelligibility of reality etc. (the evidence of which is highlighted by successful retorsions), nor is it necessary for saving at least some of the appearances that the senses present us with (as evident), at least, as far as I can see.

@seigneur and Jeremy

On the subject of Church-state relations from the Catholic point of view (which I hold to be the authentic Christian view, needless, to say) I suggest checking out this wonderful website: https://thejosias.com/

Particularly this: https://thejosias.com/2016/03/03/integralism-and-gelasian-dyarchy/

Apologies for my little non-intervensionist diversion.  But I suppose it is an example of an unwarranted absolutisation of a particular arrangement.

More to the point would be the example of Italian Risorgimento., as I believe that attacking other states and enciting rebellion against existing authorities simply to reach the goal of combining territories with roughly Italian-speaking residents into the unified state of Italy to be unjust.

As a born Russian citizen of mixed descent who had to study public law and related topics, I fairly often have the occasion to consider this matter.

I think it is crucial to be very careful using words like "nation" or "nationalist", as they have many senses, and hence a distinct danger of equivocation casts its long shadow over many discussions of this sort. My awareness of it makes me explicitly state certain things that prima facie wouldn't merit this, so I beg your forgiveness for the possible tediousness of my exposition. I also need to state that in it presuppose the truth of A-T. 

Now, whatever a nation is, it is a moral entity and a society of some sort. Societies are fundamentally what people have to do and do, so we can view them as systems of duties and relations. People unite in societies in order to pursue some goal that cannot be achieved, and its possession preserved, at least with relative ease and permanence, by their own separate efforts.This fits at least the nominal definition of the "common good". 

Now, the paramount, unconditional duty of all creatures is to glorify God through their activity (virtious activity in the case of rational animals) and thus attain happiness. This presupposes the need to uphold justice; the said need demands a certain order to our lives and actions, which in turn necessitates the institution of an authority to enforce it should need arise, as this order does not obtain of itself and is contigent upon certain conditions beeing fulfilled.

It is thus not at all surprising that most ancient societies individuated themselves through a particular public cult, hence the common duty of partaking in public sacrifices, coincedence of political/familial and priestly duties etc. The Bible lends its witness to this, I think: biblical Israel is individuated as a polity through its theology, dogmatic and moral, understood as directly revealed by God (relative necessity of heredity is, as I understand it, also taken to be a re