If it were possible to live without causing harm to any living being at all, then indeed we might well choose not to eat carrots or other vegetables. But that is not possible - merely by being alive, we necessarily cause harm to many, many beings: we step on them inadvertently, we breathe them in without noticing, we kill them when we brush our teeth or wash our bodies, etc.

Fishing is taking a huge toll on the planet's ecosystem. We are emptying the oceans, seas, lakes, and rivers as we fish them dry.

The best we can do is strive to minimize the amount of harm we cause by living. We need to eat in order to live, and there is no moral or ethical code that dictates that we should refrain from eating and allow ourselves to die for some higher purpose.

As humans, we do get to choose what we eat, and when we choose to eat a plant, we are eating (i.e., harming) just that plant, plus indirectly whatever nutrients that plant consumed over its lifetime (and we are also harming whatever beings may have been living on that plant or who were injured or killed in the harvesting process). But when we eat an animal, we are eating not just that animal, but also indirectly all of the plants and other beings that that animal ate over its lifetime - those plants became the flesh that we eat.

Farms, whether small or large, are places where slaves are kept. The animals are fattened up to be eaten, or exploited for their ability to make honey or milk, or for their fur, wool or body parts; they are kept as breeders to produce more animals who can in turn be exploited and ultimately sold, slaughtered, and eaten.

To be political actually means to care about your community.

One of the definitions for "mad" is "wild"; I'm certainly all for wild as opposed to domesticated.