Our consumption habits are mostly encouraged by various taxes and subsidies.
Of course it would have a huge impact - you're radically changing the diets of a majority of the population of the planet.
I am not going vegetarian on any day. Why? Vegetables don't satisfy my tastes nor do I get enough calories from them for my activity output.
You aren't going to change people's wants and needs because they are different from yours.
One can't argue taste, but I can argue caloric intake for high intensity activities. If a guy can win Western States 100 seven times on a vegan diet (Scott Jurek), I'm not going to worry about getting enough calories.
But as a vegetarian endurance athlete I'll be the first to admit that taste (for some folks) and convenience (for about everyone) kinda go out the window.
Do I need to do either? No, but I feel better eating meat and lifting compared to when I don't.
-- When I did run ultras, I picked up Scott's book with recipes and tried following it, I felt quite hungry.
Aha, as I suspected! ("Eh? Plenty of runners get by on a vegan diet. Now, power lifters or some such...") I can't speak to that, I'm still a scrawny runner. I mean, I suspect one could still get results with a proper (read: PITA) diet, but then I'd be talking out my arse. Enjoy your steak.
I looked up the PITA diet as I was unfamiliar, it recommends to eat less spicy foods which is tough as a Cajun, but then states to add more chicory which we add to our coffee. Maybe there is a balance!
https://lifespa.com/summer-grocery-list-pitta-reducing-diet/
I just assumed you accidentally left out a 't', but PITA makes more sense and it would be a pain in the ass.
https://www.riseofthevegan.com/blog/only-male-us-weightlifte...
But if you are putting your taste before the wellbeing of the world then you need to realize that the taste can change. You can have a taste now and a different one in one year time. Don't get me wrong, I've loved hamburgers and big steaks like everyone else, but just not anymore.