It makes the difference preventing the deaths of the animals

I don't care about that. Fundamentally in my view it's okay to kill animals to eat them because they're tasty. I don't think you can really change that view.

and reduces water and land usage

I'll be happy to make that sacrifice, but the impact to my quality of life will be disproportional compared to the actual savings incurred since compared to a billionaire I don't consume or produce much environmental damage in the first place.

I'm already doing the most environmentally-sound thing one can do - be child-free. I'm trans so it was gonna happen either way but I'll claim the points. I don't drive either, not that I wouldn't want a gas guzzling F-150 I don't need to barrel down the crossing by the school in and grind away the plebs below, who wouldn't? So that's a helluva sacrifice too.

Therefore I see no reason why I should have to do anything to cover for them until they stop polluting. Fundamentally I see no reason to "save the earth" if we don't have an egalitarian world worth fighting for, and all indicators point in the opposite direction at the moment.

You’re not giving up anything when you stop eating meat

False, eating meat is one of a few good things about being alive. You may not see it that way but it's subjective. To me it's a very significant sacrifice and a reduction in quality of life.

it’s quite the opposite really you’re much healthier on a whole foods plant-based diet

I don't really care. I'm already doing far too much for my "health", just so the bastards up top can exploit me into my elderly years instead of being some lead poisoned boomer who just chills out off their infinite house price raises and pensions going to conspiracy conventions or whatever it is they do.

Do not base your character by comparing yourself to the most morally reprehensible in our society.

There's nothing morally wrong with eating meat in my view to start with so I don't view any of this as morally reprehensible, it's a sacrifice and a pretty big one, and living the working class life I already got jack and shit, so its not unfair that we get our fair share first. Then I'll buy into sacrifices for a world worth saving.