Well I love Him, so I figured I would give Him props within my post, but if that is ground for ignoring the rest I'll reword said sections ignoring the spiritual factor :3
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If you ask me my viewpoint, the laws of nature formed this world a certain way that seems flawed to our analytical and evolved selves, but has at the very least provided the things we as a species needed to become dominant, intelligent and philosophical. We must remember though, these things are a part of our world, the only biosphere we know. Sure, some animals sharing our world are violent carnivores, and some meteorological occurrences happen that are intrinsically harmful to us, but they are parts of the way that the world which created us and made us self-aware enough to be discontent in the first place works.
As of now, we have the self-awareness to be discontent about this, and out of this human nature came ways to survive this. Though probability exists and by definition does not always work in our favor (sometimes coupled with societal problems, addressed later!), we are hardly as helpless as simply "getting run down, shot, or eaten by sharks"
. Through our relatively short time of existence and awareness, we have developed ways of fighting back against circumstances, some not-so-successful, but certainly progressive among species. Once again, sometimes the odds do not favor the survival of individuals, or even certain groups, but unless space throws some planet-killing event at us (certainly not as commonplace as the things you list), we have better means of preservation than many larger organisms!
Probability is a natural part of life as well, in fact, it's a natural part of the universe. Sometimes personally good events happen and sometimes personally bad ones happen; sometimes events happen that are bad for some and good for others. Sometimes and people get run down on the street. Sometimes, people walk slower and miss the car that would've run them down by minutes on end, and the car-drivers get to their destinations faster and receive raises for their troubles that end up making their lives a lot easier (part of this has to do with society, which I address next!).
As for society, that's up to us. Though it is unlikely, we all have the potential to be the kind of people we wish to be. Out of all the events you list, the most likely "positive outcome" is forgiveness, and that's because above anything physical, we humans have control over our own minds. You say people can't change, but what stops us? By this point, society is introspective enough that the average human can identify its own urges; if individuals realized why some of their urges were bad and had the support of other individuals who wouldn't hold it against them, why wouldn't or couldn't they change? Because we secretly don't want to? Give our development of morals more credit than that: if we weren't moral creatures you wouldn't be so despondent about the issue in the first place, you most likely wouldn't even be talking about it >.> ...
North Korea and the USA wish to simultaneously make amends and be friends? Nothing but a crippling sense of paranoia is truly stopping them. With that in mind, if either me or someone else wishes to forgive, what is to stop us/them from forgiving? If we wish to forget, what is to stop us from putting malicious events out of our minds? It is mainly fear of being betrayed in turn, which if people could come to genuine (perhaps enforced) truces more easily, wouldn't be much of an issue. If people make themselves feel happy, how is it lying to themselves? If you wish to be a nice person, what is to stop you from defying your otherwise cynical exterior?
If things continue the way they are continuing, that's not surprising, but to say we as individuals have no control over our own thought processes and therefore have no possibility of positive social change, is what I believe to be naive in its simple fatalism >.> .