Black coffee made from instant coffee is understandably horrifying and tastes like ammonia smells, but have you considered fresh coffee? I don't mean filter coffee, either, the filter paper absorbs all of the tasty coffee oils, leaving only an ashy aftertaste, I'm talking espresso, moka pot, greek / turkish coffee and french press.
Similarly, if you normally find that you hate dark chocolate, perhaps it is because your chocolate is made with slave labour and also not very good.
I am currently enjoying a fine ten year old aged Java. It is very tasty, and I highly recommend.
That's true, the bigger the company selling you your coffee, the less likely it is that they'll make sure that their beans are properly sourced. I suppose that's true for all economies of scale, and coffee is no different.
This is where I usually get my coffee beans: https://www.latitudescoffees.com.br/ they do a lot (or so they say) to ensure that they're getting their products from small scale operations, quality over quantity. As I said before, there are plenty of farmers' co-ops doing lots of great work. Not saying that the Brazilian agricultural industry is nice and ethical - it absolutely isn't, by and large. I do think there's lots of folks doing good work out there, though!
Next time you're shopping for coffee, see if you can find any traceable options! I think that's slowly becoming a kind of standard.