Funding Malaria treatment and abatement programs would have been more meaningful
Gates tried that approach. Funded mosquito nets and the development of the world’s first parasite vaccine (for Malaria).
His thanks was he’s now accused of being a witch (I’m not kidding) who’s trying to mind control everyone with microchips hidden in the vaccines he’s funding (but has no control over because he’s just handing out grants).
I’m not sure why anyone would give to charity anymore. Democrats want to get rid of all your tax incentives for doing so and the anti-vax/conspiracy theorists want to burn you at the stake.