"let's not cure cancer, it's just going to make everyone die if we cure it. Actually, on that note, everyone start eating a pound of salt a day so you'll die of heart disease. And let's make smoking cigarettes mandatory, too, because why the forget not."
you have a defeatist attitude and it's pathetic.
maybe, rather than thinking about stupid pointless stuff like this, you might want to consider solutions. figure out how to grow more food, and better food. think about how you would create unlimited, free energy (cold fusion). think about perfecting government. think about anything, anything at all, that is productive.