This is an example of US not carrying "all the water."
The second link shows that the EU+UK (countries + institutions) sent more food aid than the US.
The UK has roughly 1/5 the population of the US and sent more than 1/5 as much as the US. Or, the UK has roughly 1/8 the GDP of the US and sent far more than 1/8 as much as the US.
Also, the data is 2014-2018 when US food aid was managed by USAID. What is the US percentage now that USAID has been eliminated?