It's not that we have too many mouths to feed, it's that we have too many selfish people in positions of leadership and authority who exploit the masses to line their own pockets.
Having 50% less people would reduce the overall hunger numbers, but not the ratio.
Yes, pollution and climate change affect everyone and I am saying that is entirely unfair because many people did not choose these things, do not contribute, and do not benefit. The loss of trees in Europe is due to global effects, not just pollution in/by Europe.
Sorry, there was a typo in my comment (very -> were). What I wanted to say is that the situation in Europe is actually better in most places now than it was in the past.
With respect to food poverty, the increase in logistics/technology/marketing productivity may well offset some (perhaps all) of the resource pressure that a growing population creates.
Generally speaking, logistics have huge economies of scale (see Amazon) so an increase in market size will reduce the logistics cost per each item of food. Especially, for cold perishable dairy foodstuffs like dairy the cold chain costs may well dominate the costs of cows.
IIRC the ratio of people at risk of famine as been going down steadily while the population increased until Covid (I assume it should get back on track eventually, though)
Having 50% less people would reduce the overall hunger numbers, but not the ratio.