AAQ:
Rav Elchonon was one of the many gedolim (as in a real gadol biYisrael) who held this way, as can be seen in his Kovetz Maamarim. Anyone can search for his biographical information, like how he returned to Europe during the war despite the extreme danger to his life this presented (and he was ultimately murdered by Lithuanian collaborators, along with his talmidim).
He and the other gedolim who held this way were obviously not “all about” anti-Zionism. They taught and published Torah, of course. The context here, however, is their clarity on the threat of Zionism to Jews and to Torah.