I mean, to the last bullet, we have good Samaritan laws. We could totally pass a law that says "grocery stores can and should provide reasonably safe, leftover food to poor people and will not be punished if those reasonable actions result in bad things happening". You are allowed to just wail on an unconscious dudes chest for minutes until paramedics arrive and then not be sued for the three cracked ribs.

But cmon. We all know that grocery stores know that once people realize expired food is generally safe a) people will buy less food and b) people will show up to get free expired food and buy less food.

Scarcity is a necessity under capitalism. Movie theaters aren't going to release blooper reels for free. They add them to the credits or put them in the editors cut release. A luxury clothing brand isn't going to sell seconds, they will destroy or rework material that isn't sellable.