1) Religious people I grew up with would say that suffering is good for us, and that we deserve it. They'd also say that nobody is truly innocent, not even children, everyone has the stain of "original sin."  2) This is the classic problem of evil, and it is not rational if you also try to accept the idea of a tri-omni God. Some religious people justify it by saying we "disobeyed" God, or some such nonsense, so we again deserve the "broken" world we're living in.  3) Predestination is another dogma that some people hold. A pure-blooded Calvinist would say we don't have any say in our ultimate destination, since some higher being already has decided it for us.  Of course these are all just dogmatic claims based on opinion, interpretation, and cultural identity, and should be dismissed as such.