Isn't it pointless to stop eating factory-produced meat, since one person won't make much difference and will never change the world this way, and because it's impossible to convince others when you can't even convince yourself?
Do you secretly hope for an environmental catastrophe big enough to finally prove that global warming is real and that you were right all along, but even more secretly fear that deniers will still say that it isn't anthropogenic, or that deaths and suffering will quickly be forgotten as the extreme right continues to extol the virtues of the new hotter world?
Don't you hate it when you argue about the existence of god and prove your case flawlessly, but then people discover the existence of consciousnesses in the universe that dwell in scales of size and time that are completely beyond our own experiences, and then people say, "See? That's God!", but really they cheated because that's not at all what they described when they were talking about their God, which really isn't fair.
How do you effect change in a world that stupidly, stupidly refuses to agree with you?
Hint: It doesn't matter whether you're right or not; all that matters is what's important to you.
...
There's an old saying by Oprah -- I know it's by Gandhi, probably by Oprah -- that says:
"You must be the change you want to see in the world."
Of course that means that you can't change the world without changing yourself first. But, it can also mean that by changing yourself, you are changing your world.
We each live in our own world. Our world is everything we're aware of, everything we choose to be a part of, everything we experience. Modern living and global news networks make us think that the entire planet is our world, but that's not true. You can let the news tell you what's important to you, and you can take on the entire world's problems (big and small) as your own, but you don't have to. You can tune out, and tune into a different world, make your world the world you want it to be, not by changing everything around you to your liking, but changing yourself to see the world you want to. You can make your world smaller, small enough to be able to make a difference in it.
How does this work?
Suppose you're in a grocery store and you simply read the ingredients on a package of meat, because you're concerned about what's in it ("right view and intention"). You've then already started changing the world. Suppose it contains "pork by-products" and "sodium nitrite", and because this sounds unappealing, you put it back ("right action"). You've changed your perspective on your world, and though it may change back, you might instead never take for granted what you buy and put in your mouth.
Without having to force yourself to do anything, you may find yourself interested in what's in everything you're eating. You may notice things that make you feel healthy and things that make you feel unhealthy, and end up changing your diet. You will see advertisements differently, being aware of some of the things they don't tell you, and decide what you want based more on your own decisions than on persuasion. This way of thinking will affect all your purchases, not just pork vs. no pork. You can escape the world of consumerism, and enter a smaller world where there is more intelligent thought put into what you buy. And that will spread from what you buy to what you do, in different aspects of life. Pretty soon your world is very different. You may not have shut down a hog factory, or convinced anyone not to eat meat, or even stopped doing so yourself, but you'll have changed your own world in ways that make a much bigger difference on your own life.
Last week Some time ago was Buy-Nothing Day. Are your spending habits different than they were a few years ago? Do you feel more conscious of what you buy, and what you do?
...
If you want to change the larger world around you, I'd suggest helping enable people to change their own worlds, rather than fighting against people who seem to be content with a world you want changed. Work for increasing people's freedoms and education, and then leave it up to them to change their own worlds.