[midoridensha]

Your points are all entirely valid, except the "third world country" stuff: all the things you complain about are common in the richest and most developed nations. It's a systemic problem everywhere, not just in poorer countries. In fact, it might be worse in the richer countries because access to these drugs is more affordable (relative to local cost of living) there: farmers in a rich country can easily afford to pump up their livestock on unnecessary antibiotics, whereas poor farmers in some backwards country can't afford that and probably don't have access to the drugs.