Nobody is immune from suffering in this life on earth.
Jesus Himself asked the Father for His cup of suffering to pass, but He submitted to the Father's will for the greater good of all mankind.
It's what I've dubbed the Incredible Shrinking God Syndrome again - a God deemed powerful enough by its believers to work miracles (creating a universe; resurrecting the dead) when said alleged miracles are pushed far enough back in history (2,000 years will do; 13.7 billion years is even better) to be beyond investigation, but when it comes to doing something identifiable
now such as preventing suffering (preventing the Holocaust; preventing the Boxing Day 2004 tsunami; eradicating disease) its so-called powers suddenly evaporate in a puff of logic (copyright Douglas Adams). If it's a long, long time ago and safely out of reach it's Big God who can do practically anything; if it's right here and now and therefore potentially amenable to scrutiny, enquiry and investigation, it's suddenly can't-organise-a-party-in-a-distillery God whose only power seems to be in inducing his followers to serve up the usual warmed-over platitudes. A God who can magic a cosmos out of nothing and permeate every quark of it can prevent suffering; that this doesn't happen (and we get the inevitable trite bromides about God being "present" in suffering - well, gee, thanks, that helps no end) merely leads to the usual parade of desperate
ad hoc excuses and rationalisations of the irrational.
I could just as easily say that my great x 10 grandfather was a miracle-working god-man who raised the dead and himself died and came back to life - it's certainly not something which can be disproven. Christians of course will reject the reality of my distant ancestor and his amazing works, but only on the purely arbitrary basis that they accept anything claimed, no matter how preposterous, if it has Jesus stamped on it while rejecting other equally preposterous claims that don't. We can take it as read that if the New Testament claimed that Jesus rode into Jerusalem on a purple brontosaurus with lime green spots and playing a selection of Kenny Rogers hits on the kazoo, it would have been solemnly believed by Christians ever since. (And would certainly have led to the persecution, torture and murder by fire of those who thought that the spots were more of a pale turquoise colour). It's a form of the argument from authority fallacy, I guess; Jesus can do it just because because because, whereas my great x 10 grandpappy cain't because he ain't.
C'est la foi.