I wonder what the world would like like if western nations hadn't meddled so much in other's affairs.

That would actually make a really good TV series: "What the World Would Have Looked Like - Episode 3: Germany Wins World War 2". Of course there are numerous theories for each, but that's ok, just state that at the beginning and say this is just one of many possible theories, it's just for fun. I'd watch that type of show for sure.