Here's my thinking.
Estimates show that it would cost $5billion for roughly a decade to take out Malaria world wide. That seems like a lot yeah, but, in the big pie of even the US budget for foriegn aid, it is just a fraction. Even a stealth bomber costs more than that.
I get that people don't want to cut many things, and most people agreed that cutting foreign aid should come first before cutting here. HOWEVER, when polled, people assumed that about 25% of our budget went to foriegn aid, and the average amount that people were okay with cutting it back to was 10%.
We currently spend around 1% of our annual budget on foriegn aid. If we bumped it up to 10%, and spent that money on malaria eradication, we could eliminate the disease.
This isn't just something to be looking at as a humanitarian effort, yeah you would save millions of lives, but think of all the new allies the US could make in those countries if we stopped a leading cause of death. Huge Political incentive there. So why aren't we doing it?