I understand what you're trying to say but honestly at that point what's the point of asking any alternate history question. This entire website is about not saying "who knows", but trying to find likely possibilities.
On the colonial negligence you (@Zwide ) speak of, you have to take into context that even territories that weren't colonial had famines and lost hundreds of thousands to it. The best example would be the Russian Empire and later the soviets, who had famines well into 1947. And if we wanna talk about if India (or whatever countries come from not being colonized) we can't be sure that administrative negligence would or wouldn't plague it since they would have to deal with the same problems the Russian empire faced.
Butterflying colonialism is such an enormous POD that finding a "likely possibility" is almost impossible. A Mesoamerica without colonialism could have been an enlightened place with a high standard of living, much better than OTL Central America. It also could have turned into warmongering entity that started attacking random parts of the world and bringing back captives to be human sacrificed. India without colonialism could have been a fabulously wealthy place with a high standard of living. It's equally possible that a ruler would have popped up who was as stupid, murderous, and exploitative as the British Raj. We really have no way of knowing.
Like I said earlier, it's likely that many parts of the world would be the potential to be much richer and more cohesive than they were during or after colonialism. It's equally possible that this could have created a nuclear armageddon or some other horrific situation that led to a terrible standard of living.
It's fun to speculate, sure, and it makes for some good TL's and stories. But on a serious/factual level this question is impossible to answer.