Is the white man's burden terribly heavy?
Yes, but it goes back more than two thousand years and includes all the "white" men such as the Muslim Arabs. Every nearby civilization going back to the Classical Era has treated sub-Saharan Africa as a source of slaves, raw materials and native trinkets. In general they have discouraged the development of native civilizations, either imposing their own (largely for their own benefit) or keeping the Africans in the Stone Age where they're easier to exploit.
If anything, the modern Western post-industrial nations are noteworthy for their increasingly large faction of citizens who regard the world as a single civilization and would like to find a way to help the Congolese, Bolivians and Cambodians out of the mess our ancestors helped get them into.
There is over 4 million in U.S alone.
My wife was a social worker for much of her life. The vast majority of the "four million starving Americans" or "homeless Americans" or "discarded Americans" are in fact mentally ill Americans who retain just enough of their faculties to avoid being gathered up by the authorities and warehoused in institutions. They'd rather live outdoors, dependent on handouts, than be locked up with a bunch of other crazies, medicated into a stupor by bored civil "servants." Personally I don't blame them.
Snarkiness aside, I think that the fault lies within western governments for not providing more money to Congo
Your good-heartedness is commendable, but throwing money into these countries has never worked. Their despotic leaders manage to grab most of it and spend it on champagne, Land Rovers, hookers, and weapons to fight the despot in the next starving country.
The root of the problem in the Third World is that the people are still locked into the tribal stage of their cultural development, and the nation-state model doesn't fit them.
What needs to happen is for a western military occupation + Marshall Plan to FORCE the locals to stop butchering each other, and to CREATE an economy, then gradually hand over control to the locals.
That's pretty much how they got to where they are, isn't it? The European colonial powers occupied them for centuries. They drew arbitrary lines on a map, tossing together fragments of various tribes that had nothing in common but their mutual hatred, then overlaid it with the infrastructure of a Western nation-state and an Industrial Era economic system. Unfortunately the local cultures were still in the Neolithic Era and the infrastructure meant nothing to them except as a reminder of the occupation.
Those four million are lazy losers who suck off welfare. They lack the genetics or moral fiber or perhaps they're too old, young, frail or sick to make it in a capitalist environment.
They are indeed sick, but those particular four million people avoid the authorities and never show up in a welfare office where they'd be immediately hauled off to a public hospital and never let out. They get by off of handouts, which is a far more efficient system than funneling the money through the government and having thirteen layers of bureaucrats take their cut.
Look up Chinese and Indian policy in Africa.
The Chinese have not exactly distinguished themselves in Darfur. Neither have your beloved Arabs. None of the more advanced nations have done very well by the sub-Saharan Africans.
I've seen op-eds by African scholars pleading with the rest of the world
to just go away and leave Africa alone. To let them solve their own problems, no matter how many mistakes they make along the way, no matter how long it takes, and (sadly) no matter how many of their people have to die along the way.
I suspect this is the only answer. Isolating the continent so that no Western influence is allowed in, while it sinks back into the Stone Age and crawls out at its own pace in its own direction. And of course this strategy is impossible.
And of course to be fair we'd have to do the one thing that the Western nations don't want, which is to allow free emigration out of Africa so that anyone who wants to opt out can come and assimilate to our ways.
Since the primary determinant of how poor a man is is what country he lives in, the most powerful tool we have for ending his poverty is to let him come live in our country.