OP, I hope you're taking a B12 supplement because even pro-Vegan "experts" know you can't get that from plants. (Which is one reason that I think vegetarianism makes more sense.)
I figure that we all choose what we eat whether we're Vegan, Vegetarian, Omnivore, or Carnivore. I don't think any one of those should feel superior to the others.
As far as Grok thinking, "Hey, I want a banana," and then going out and finding one, well I find that an unlikely scanario. More like modern human thinks, "Hey, I want a banana," and then goes to the corner store to find one. Grok ate what was on hand or s/he starved. In some areas, when it was cold, vegetation might be hard to come by. In others, vegetation was plentiful year round.
There's a whole world of food out there. Someone once posted that food should be for nourishment and not for entertainment. I think it's both. A beautiful steak cooked just right, a red juice spurting burger, oysters floating in a creamy broth, a BAS made with care and beautiful veggies - nourishment all, but don't we smile when we eat them?
If the wheat and corn grown in this country weren't so questionable, I might indugle more than once or twice a month. Except for health purposes, I find it a little odd to completely vilify any one food group. Decreasing a food for its lack of nutrients is fine as is increasing a food that is laden with nutrients.
As to the ethics, my understanding is that about the same amount of old growth forests have been cleared to grow soybeans as have been cleared to raise CAFO beef. Also, is a wolf or lion unethical because it eats meat? Our teeth are made for both shredding of meat and grinding of veggies. But we're not slaves to our biology.
Eat foods not laden with chemicals. Move a little. Lift stuff. Pull yourself up into the occasional tree. Get some sun. Sleep the sleep of the innocent. Play. Which section of the Vegan ----> Carnivore spectrum one lives is completely up to the individual. And taking the middle road isn't always a bad thing.
Good luck in your new journey.
"Right is right, even if no one is doing it; wrong is wrong, even if everyone is doing it." - St. Augustine