So what about the meat that gets thrown out when no one buys it, causing the stores to order less, causing the CAFOs to grow fewer head of cattle?

The economics-101 concept of "supply and demand" would like a word with you...

The OP didn’t say it’s the best thing a society can do, he said it’s the best a PERSON can do. One person deciding not to eat meat will not fix the climate crisis.

I think you are missing a huge point.

A society is made up of lots of "one person" entities.

For your argument to be valid, I need to accept that you seriously believe the OP was claiming one person can fix climate change.

So which is it?

People not eating meat will lower demand, the price goes down, someone who couldn’t afford meat before now can and eats the meat. Either way, that cow is getting eaten. See my other comment…Meat consumption in China is up 30% over the last 7 years and expected to continue to climb. Meat producers will find a hungry mouth somewhere in the world to feed.

I have never understood this attitude. "If I don't drive a Hummer, someone else will use the gas".

The less animals products you buy the lower the demand. Have enough people reduce meat consumption and fewer animals will be bred and killed. It's not about "resurrecting the cow".

Wrong, the supply of meat can’t keep up with world-wide demand. Chinas meat consumption has increased 30% in the last 7 years and will continue to climb. As supply increases, prices fall and more people can purchase the meat. If you don’t eat the steak, someone else will.

Sure, but it signals demand for future cows.