I will not comment DIRECTLY on Rav Elyashiv’s ALLEGED staement.
I will just say this…
In my humble opinion, if someone is really and truly so anti-Zionist, they should not use anything from the ‘terrible’ Tziyonim”.
When I say ANYTHING, I mean the majority of the country’s infrastructure, i.e. highways, electical system, water system, phone system, etc.
Most certainly they should NOT make use of the I.D.F. which they so malign and detest. What do I mean by “make use of the I.D.F.”? Simply, they should not BE in Eretz Yisrael. Why not? For the simple reason, that since Mashiach has not yet arrived, the fact is that without the I.D.F. EVERY JEW in Eretz Yisrael from the most secular to the most ‘ultra-chareidi’ would be slaughtered by the yishmaelim! Thus, just to be ALIVE one is making use of the Tziyoni I.D.F.
Of course, this is just my personal opinion, – I would not want to get ‘ha’na’ah’ from someone I detest. If one now lives in (PRE-Mashiach)Eretz Yisrael, they ARE, de-facto, getting benefit from the I.D.F.