Imagine making up strawmen on forums so that you can feel smug knocking them down...
The fact is that governments already spend far more than billionaires are able to spend and are relatively ineffective. No one has ever suggested they stop doing their part. Billionaires lending their expertise and money is not a substitute for government work, it's just a proven accelerant.
See Bill Gates' work in Africa for an example. He has leveraged his fortune to help find effective opportunities for his money and government money. He has has saved millions of lives that no government would have otherwise saved, even if he had donated all of his money to the U.S. treasury.
The fact is that governments already spend far more than billionaires are able to spend and are relatively ineffective. No one has ever suggested they stop doing their part. Billionaires lending their expertise and money is not a substitute for government work, it's just a proven accelerant.
See Bill Gates' work in Africa for an example. He has leveraged his fortune to help find effective opportunities for his money and government money. He has has saved millions of lives that no government would have otherwise saved, even if he had donated all of his money to the U.S. treasury.