Matan1, it is not my place to back up Rav Aharon’s words.
However, I question your statements about Rav Soloveichik. How are his works important to Orthodoxy as a whole? Outside MO, what Yeshiva even has those books in their libraries? Which Rabbeim outside YU recommend those to their talmidim?
As to talmidim of Rav JB Soloveichik who are now Rabbanim, the following incident makes me question why one should believe this is (in some cases) a good thing. I actually recently heard a shiur from one of those students of Rav JB Soloveichik. In that shiur, he made a point of propagandizing various Zionist fantasies. He made the usual Zionist mistake regarding Rav Simcha of Dvinsk, etc.
But beyond that, he made a point of saying “tell your kids in Yeshiva” that Israel is not a Maaseh Satan, etc.
In my very humble opinion, this man has severely damaged the Judaism of the people he is addressing and, if they listen, these people’s children (potentially liDoros) as well, CH”V. He is purporting to teach Torah but is instead doing the opposite.
To be clear, I have no problem with someone repeating over what his Rebbi held, or even his own Torah from other sources, and I also know Rav JB Soleveichik was sympathetic to Zionism in his time. But to propagandize Zionism in the guise of, lihavdil, Torah and, worse, to insist to baalei battim “tell your kids in Yeshiva”, is absolutely unacceptable.
This talmid of Rav JB Soloveichik was telling them to tell their kids to ignore (or, perhaps, bypass) their own Rabbeim in favor of, at best, his own Rebbi. He surely knows of Rav Aharon’s and others’ opinion of his Rebbi’s views on Zionism (and secular studies) in particular. As well, most likely, the kids don’t know enough about the sugya to counter these serious errors.
Very briefly, part of what the “Religious Zionists” missed (and what they still don’t get) is that, as the Brisker Rov did say (I recently saw this) the Balfour Declaration, while absolutely not a heter for Zionism, was indeed a “smile” from Heaven.
But the Zionists ruined this eis ratzon with their State. Had everyone davened for the geulah, he said, the geulah would have come. Instead, they ruined it and davened for the State to come to life, and, like the eigel, it did; they got what they asked for and not the geulah. “Miharsayich uMacharivayich miMech Yetzeiu”, indeed; Galus would have been over instead of this eigel and all its karbanos, etc. and we are all still in galus, Hashem Yiracheim.