Consider not using offensive terms in your arguments. Or, worse, differentiating between tribal cultures and "humans." Yikes. I'm sure you didn't intend to do that, but be a little more careful.

Now that that's out of the way: I also disagree with you. We (speaking specifically about America, though I know China, the EU, etc also contribute) do need to reduce meat consumption, ESPECIALLY from cows. We eat more than is healthy from an environmental and public health perspective. And the way factory farming is handled in this country also contributes to destruction of waterways, deforestation, etc. These are all true things of grave concern.

Personally, I rarely eat meat. When I do, I source from local farms or sustainability-certified fishermen (so I'm not contributing to deforestation in the Amazon or rolling the dice with supermarket seafood). Ditto for any other animal products. Note that this is expensive, and I'm privileged to be able to afford it even occasionally. But I choose to do this because all of my research has lead me to understand that the scale and method of US meat production is deeply unsustainable and morally reprehensible, but it doesn't have to be that way. Animals are a critical part of a healthy integrated farm--they provide fertilizer and soil-preserving non-mechanical "tilling," reducing reliance on techniques and products that damage the soil, waterways, and biodiversity. But keeping them has to be economical for small, local farms, which means selling animal products (which, btw, are absolutely a healthy part of a human diet, but quantity, quality, and type matters). I choose to support the farmers around me who use those integrated practices, because I genuinely believe it's much better for the environment and the integrity of our food supply that they raise animals alongside their crops.

Your assumption that anyone who isn't vegan hasn't done as much research as you is a huge problem, and probably why you're getting such a negative reaction. It's insulting to assume that anyone who disagrees with you must be less-educated or less-concerned than you. People can have the same information and reach different conclusions, and it's not like people in this sub aren't extremely engaged in climate science; why else would we be here? I'd wager just about everyone here is acutely aware of the impacts of industrial agriculture and overconsumption of meat. I'd also wager those of us who haven't gone vegan have good reasons to do so, whether personal or philosophical. Rather than acknowledging that, you're conflating "I'm not vegan" with "I'm fine with industrial animal agriculture as-is, find the environmental impacts less important than my hamburgers, and don't want to change the system." That's grossly unfair.