>That's just part and parcel of being human.

Also part and parcel of being a human being is logic and empathy. Anyone who possesses one of these traits, never mind both of them, should find it easy to choose the product that isn't literally the product of human suffering an exploitation.

Blood diamonds are terrible, but the overwhelming majority of diamonds produced these days are not blood diamonds relying on slave labor, they're mass-mined products relying on colossal-scale industrial machinery. That's why Russia is #1 and Canada is #3 in worldwide diamond production today: even the world's largest diamond mines have 1-3k employees vs. massive production.

That's not to paper over the issues with the industry (environmental, poor working conditions, poor pay etc) - but those are more generally applied to any mined product. I'd be willing to bet that your average set of modern electronics cause far more suffering than your average diamond: see conflict resources such as tantalum, tin, tungsten, gold.