Giving up cars has a real cost in terms of time and productivity. If one lives in a place without usable alternatives, it might even be impossible. Giving up beef has no such cost and is something that any individual can do.
I believe beef provides superior, and evolutionary-compatible nutrition for my body. And lack of that nutrition will have a negative effect on my health, and thus associated costs with it. Maybe not tomorrow, but in 10 or 20 years.
I’ve been both a vegan for 2 years and pure carnivore for 8 weeks. I’m eating everything at the moment. But I have my own conclusions what works for me.
You can believe and eat whatever you like. But if you make disingenous faith based arguments in a public forum, expect to be called out.