Can we create food from inorganic matter?

I don’t think so, other than necessary small amounts of minerals. Basic carbs, proteins, & fats are all organic (in the chemical sense) and comes up the food chain from plants to us. I suppose chemists could synthesize, say, sugar from inorganic precursors, but it would be very energy-wasteful and not feasible on a large scale.

We’re firmly dependent on other living things for food.

Which is why we keep driving them all to extinction and destroying where we all live. Oh wait, no, that doesn’t make any sense at all.

Possibly, but I wouldn’t eat it!

Only autotrophs, such as plants, have that ability. Humans and other animals are heterotrophic organisms, which can only survive on a diet of organic matter (with a few added minerals and metals). No matter if herbivore, omnivore or carnivore, we all have to kill in order to survive.