How should God kill people then? In alphabetical order? Should we get announcements by angels once a week to know who's going next? Should there be free grief counseling by Jesus himself where he pats us on the head and assures that yes he loves us? We Christians know that when God apparently does nothing, then either we can't see what he's up to, or he isn't going to change what's going to occur.
He could, say, not cut down close members of your family when you're already struggling to cope. Or not kill people below a certain age.
And it's not really "when" he apparently does nothing, because, under that logic,
he never does anything at all. Unless you're gonna claim that all bad events aren't his fault, while all good ones are.
If we're about to endure something mindboggly difficult, then God's lack of action is a sign that he knows we can endure what's going to happen, and that what is going to happen has to happen. God does minimize suffering and pain, but not to everyone and not all the time, it depends on the situation and what purpose that situation is going to serve. Sometimes suffering is meant to strengthen, we don't build up a muscle by never stretching its limits.
I'm gonna say it now - not true. Millions of people are caught in natural disasters, suffer, then die. A good start to "minimizing pain and suffering" would be "stop natural disasters".
And he's a just God too, not just a loving one:
http://www.biblegateway.com/passage/?search=Isaiah+30:18&version=NIV
Yet the LORD longs to be gracious to you;
he rises to show you compassion.
For the LORD is a God of justice.
Blessed are all who wait for him!
If you spend your life in sinful pleasures, ignoring and cursing God, why should you expect the same reward as someone who spent dedicated themselves to God and doing good? It's like being an anarchist who is quite happy with his unemployment and food stamps.
"Ignoring"? He's shown me no evidence of his existence, and even if he had, he's given me no reason to worship him. Effectively, he'd be punishing people for questioning the dogma given to them (or, in some cases, for never having heard of said dogma before).
I don't even mind so much if those who believe get a "special reward". It's the "throwing everyone who doesn't agree with him into hell for all eternity" that bothers me.