I really don’t see how they are strawmen. The vast majority of people do not need meat, the reason they eat meat is because it tastes good. Taste is merely one of our senses, why is it ok to kill to enjoy the taste, but not ok to enjoy the sound or sight? That’s what the meme is getting at.
Nature playing out
Why is this an argument, when it isn’t an acceptable reason for anything else? Rape, murder, thievery are all things that most people see as wrong, despite them happening in nature plenty.
One of the things that makes humans unique is our ability to consider logic and mortality beyond what happens in nature, because nature certainly isn’t perfect.