Why don’t they put a large sacrificial dome or cone on the back? Have it detachable, when you get to a combat area, hook it on. It gets blown off, put another on.
Hell, load the thing with claymores or something equivalent to detonate in the direction of the missile.
“Here is the Merkava. You could say the same thing about our Black Hawks. They’re easily taken out by guerillas with RPGs. But does that mean we stop using Black Hawks”
It probably has to do with battlefield statistics. Let’s say a Blackhawk is vulnerable during 3% of its mission. So, the probablility of getting shot down is P*3%*mission time. But the Merkava is vulnerable during 100% of its mission. So, the probability of destruction is P*100%*(Days,weeks,months.)