How would less wastage help at all? It would just translate to less production and everything would continue with the same risks as always, wouldn't it? I don'

How would less wastage help at all? It would just translate to less production and everything would continue with the same risks as always, wouldn't it? I don't have any food growing in my garden even though I could. Is that food waste? What if I plant some vegies and forget to eat them and they die and rot. Is that food waste? I don't see that food waste itself is a real problem, just an illusion because it's so visible. Surely we all waste electricity by having hot showers instead of cold, or leaving our computers on when we're not using them. We can afford it, so why not? Even those poor people are wasting oxygen in the air! Imagine how scarce that is in space or a submarine.