But India wants to be allowed to do this already with an increase of ten percent, and it enjoys the support of about 100 developing countries.

Food imports prevent poor countries from becoming self-sufficient as they remain dependent on the whims of the global market. With rising prices, they run into serious problems and are forced to sell their mineral resources, land and labour at low rates.
Dependence on the global market also applies to rich countries, but there they have more financial resources. The average household in the Netherlands has € 44,000 in savings.
Living on other people's land overseas is only possible through the use of huge amounts of fossil energy for chainsaws, combine harvesters, agricultural tractors, bulldozers, trucks, ships, cranes, processing machines and cooling installations. That energy supply is finite. It is better to become independent today rather than tomorrow and start doing our own thing. The same principle must be applied in poor and rich countries.