The superiority impulse is the real issue. It's likely true that without foreign aid that large swaths of Africa would recede into feudal poverty.

The real wrong-think is believing that western lifestyles are the only valid ones. Leftists depict "noble savages" in media but don't really drink the Koolaid.

The nuanced via is that people with the capability of living peacefully in Western society should be welcome and the rest left to their own devices. Busybody lefties can't abide that.