Rule - Blåhaj Lemmy

I mean we can also make long lasting clothes out of natural fibers without hurting animals.

You can indeed. But growing cotton has already resulted in environmental changes beyond my comprehension.

I guess the first step should be to adapt a habit of clothes repair

Growing cattle has also had a massive impact on the environment. And you often need more land for animal based materials because you both need land for the animals and the land to grow food for the animals. With cotton at least you just need land for the cotton.
Why is this always brought up, stop spreading this. Animals usually are not fed grain unless it’s harvesting time. We also do not grow food just to feed them. The grain we feed animals is shit you cannot eat. It’s roots/stalks/stems/bad/rotted plant matter. It’s the leftovers from the greens we can consume. Most animals also are raised on land that is not suitable for crops, rocky/hilly/weak topsoil land.
Why it is true that you’ll graze non-butcher animals on the leftover stalks and such, we absolutely finish beef and pork on grain and a big portion of the grain harvest is for animal feed.
Almost all of the grain we feed is what I just explained. All of that is ground up and a binding agent (usually molasses) is applied. We do not grow crops just to feed to animals, it’s a complete waste of land. We grow crops for our consumption and use first and whats left over is turned into grain to feed to animals we then butcher and eat.

Dude, I live in the midwest USA. The number one crop in this area is dent corn: 40% goes into ethanol production, and 36% is used for animal feed

We absolutely grow corn specifically to feed livestock.

It’s Time to Rethink America’s Corn System

Only a tiny fraction of corn grown in the U.S. directly feeds the nation’s people, and much of that is from high-fructose corn syrup

Scientific American

www.sciencedirect.com/…/S2211912416300013

86% of the global livestock feed intake in dry matter consists of feed materials that are not currently edible for humans

But it also makes an important contribution to food security through the provision of high-quality protein and a variety of micronutrients – e.g. vitamin A, vitamin B-12, riboflavin, calcium, iron and zinc – that can be locally difficult to obtain in adequate quantities from plant-source foods alone

Just because they feed corn doesn’t mean it’s edible to humans, a lot of the corn grown is left to dry on the plant and then harvested. We do this so we don’t end up with another famine. Not saying corn is what we should be growing for that, but it’s a very easy and hardy plant.