As soon as you made it a personal, moral issue, you lost the argument entirely. If the goal is to get everyone to adopt good habits for the environment, you're going to have to address price and convenience.

"I wish they would have addressed the price and convenience issues and not made it such a question of morality", I say, as I eat a handful of dirt and survey the barren lifeless landscape around me.

Food is not a luxury item.

I've been drinking almost exclusively tap water the better part of my life. I suppose my luxury is drinkable tap water. So let's aim for that for everyone instead.

Food doesn’t always need to be wrapped in plastics. For example I’ve seen bananas wrapped in clear plastic bags. Why is that when bananas come with their own “wrappers”?

Diet Coke isn't food.

Some foods absolutely are. Foie gras, black truffles, Dom Perignon, endangered tiger meat, etc.

That's missing the point. The point is that the introduction of plastic packaging has made food far safer and more accessible for billions of people.