This argument is logically false, because it ignores scale.

It takes far more plants to feed a meat animal that feeds a human than to feed plants directly to a human.

So you have two choices.

In Choice A you grow and kill some number of plants, and eat them.

In Choice B you grow and kill five to ten times as many plants, feed the plants to some number of animals, kill those, and eat them.

Choice B involves far more suffering — but it also involves far more greenhouse gasses, far more land usage, far more water usage, far more pollution of every kind.

Choice B is objectively much worse in every possible way.

There’s no easy answer unfortunately, although I look forward to lab-grown meat as an alternative option in the future — when this is available, I will never buy real meat again.

“It’s out of my control! I have to eat meat or something identical to it. What can I do?”

There are plenty of excellent substitutes for meat right now. They don’t taste like fake meat, they taste like some actual food.

What you’re saying is that eating exactly what you want to eat is more important than the world’s future. I cannot respect that attitude to the slightest degree.