Not all meat is steak. Reducing and/or exchanging beef for other meat sources can at scale already make a massive difference.

Chicken, for example, produces 10% of CO2 per kg of meat compared to beef.

But the human hand was designed to hold a banana.

Not quite true, but cooking becomes quite a bigger challenge.

But mainly, beef and meat is not the same, cattle needs way more ressources than chicken for example, or well, insects.

There are other sources of meat.

Also dairy is not a meat.

Oh, I didn’t realize that I dropped dead years ago when I stopped eating meat

Ridiculous comment. The human body is not designed at all, and is very much capable of surviving without milk and meat. It's not even very hard!

There is no health reason to eat meat. You can get your B12 elsewhere.

It literally is designed to survive without meat, meat used to be a luxury that was only eaten on special occasions for most people in history, we only eat so much nowadays because it became so cheap

And yet the most populous country in the world has an enormous contingent of people who do not eat meat (on the order of hundreds of millions).