I can only imagine that cudeus is trolling big time today.
If not,
Although the distribution problem is real.
The question of food waste is extremely complex.
If we had a way to transport every mango in good and edible condition from the tree to the US, Asia or Europe would that mean mango consumption would skyrocket? It would probably grow as prices fell, to the extent that mango demand is elastic.
As prices fell farmers would realize that their mangoes (and their carefully tended groves) were worthless and the more wealthy would migrate to another crop, rinse and repeat. The less well off would become destitute and quite possibly revert to subsistence farming. using their mango groves for kindling.
It's a hypothetical because there are not enough facilities capable of pre cooling the mangoes at origin, and storing them at optimum temperature, nor capacity transporting them to the consumer markets, and thus many mangoes are left to rot.
Obviously there are mangoes that do not physically meet the desired traits in the receiving countries and they are discarded on site during processing.
This doesn't even count the stuff that goes wrong in transit, what is thrown out in the supermarket due to senescence (caused by lower than expected demand, ie incorrect forecasting of consumer behavior) or what sits on the countertop with mr and mrs Jones for a week and gets tossed because it no longer seems like eating the mango is such a great thing.
As you can see, there are many issues to tackle and not least some very chaotic ones (e.g. consumer behavior in supermarket and home)
In so far as reducing food waste's impact on prices. In Denmark in the past couple of years food waste from supermarkets onwards has been reduced by 25% without an inflationary effectt. I could go into the details of that but most likely you don't really care.