HaKatan:
As you mention (and as we discussed in other threads), we had agreed that the issue with Zionism is as grouped with other “isms” that replace (or join equally with) Hashem and His Torah. I find it difficult to see that being the case with Talmidei Chachamim shuch as Rav Lichtenstien.
Nationalism in it of itself is not against the Torah. We certainly know that (for example), the Spanish Rishonim (e.g. Shmuel HaNagid) were pro-Spain and its kings. This goes back to Shmuel in Baval and his relationship with Shapur I. Even in the USA, the country is a Malchus Shel Chessed and we have a responsibility to support the country. That is not related at all to the religious aspect and our relationship to the RBSO (except perhaps for Dena D’Malchusa Dena) and does not replace it.
If you believe the issue with Zionism is Nationalism, let’s discuss in a different thread, as that issue has nothing to do with “Zionism” per say over supporting Canada if you are a Canadian, (C”V).