PETA opposes domestication. So do I. That's about the extent of our agreement on issues.
PETA has a record of killing the animals they're supposed to be helping, such as at their Virginia shelter, where their kill rate is apparently 97% (higher than even most of the worst municipal animal control departments).
PETA workers have been convicted of crimes, including two who claimed to be taking needy animals in order to find them good homes, only to kill them in the back of their van shortly thereafter, and dumped the bodies in a dumpster. (I believe it was a Walmart dumpster.)
PETA supports breed-specific legislation (where dogs are killed or cruelly restricted) based on inexpert opinion about their head shapes, coat lengths, etc. (Every reputable canine training, behavior, genetics, and veterinary expert supports holding dog owners accountable when they fail to properly train and supervise their dogs, regardless of what their hapless dogs may look like.) Ingrid Newkirk, PETA's president, has openly admitted to hating 'pit bulls' and advocating for their extermination.
I oppose domestication, captivity, cruelty, and factory farming. I would prefer that all creatures were born with the full complement of instincts they were meant to have; that they had skilled parents who could teach them how to be successful in their natural environment; and that all animals were free to live the autonomous lives nature and evolution intended.
Domestic animals have been selectively bred by humans to the point they're crimes against nature.
Domestic sheep CAN'T shed their wool, like their ancestors could. Although mulesing isn't standard practice, it is barbaric, and only serves as an attempt to solve a human-made problem created by selectively breeding sheep that don't shed.
Unlike their auorch ancestors, domestic dairy cows produce grotesque amounts of milk and must be milked several times a day while lactating (and, thus, are usually not allowed to graze at-pasture, as that is impractical for multilple daily milking sessions). The milking machines, themselves, often lead to infections.
Dairy calves (the male offspring) that result from the near-constant pregnancies necessary for dairy cows to be profitable for the farmer, have little use in the dairy industry, so the veal industry was born (where calves are killed by 6 months of age, after having lived their entire lives nearly imobilized and often in complete darkness, to ensure their muscles can't develop before slaughter). (It's the pale, pink, underdeveloped muscle tissue that is so prized by veal consumers.)
Domestic egg-laying chickens have been selectively bred to produce large quantities of unfertilized eggs. Battery egg farms keep chickens in horrific conditions. So-called "free run" chickens are often debeaked, and most still live in barns kept in darkness most of the time. "Free run" does not necessarily mean the chickens are out in the sun eating bugs and enjoying their lives. Death from overcrowding and disease is common in those dark, filthy, "free run" barns.
Meat chickens have been selectively bred to reach slaughter weight by 6 months of age. They've been so grotesquely over-bred, they often can't support their own weight by six months of age, when they're killed. Chickens can live to be 10-15 years-old in more natural circumstances.
Beef cattle have been selectively bred so they reach slaughter weight by about 9-12 months of age. Cattle can live 30-50 years in more natural circumstances. Most beef cattle spend at least part of their extremely short lives in high-density feed lots where they stand in mud and their own feces, in overcrowded conditions. Because of this, they have to be pumped full of antibiotics, to prevent widespread disease. ...Killed as babies, though.
That doesn't even begin to address abuses in those facilities. Those are just the abuses of domestication and captivity.
If it wouldn't be okay to keep your child or your dog in those conditions, then it isn't okay for other living beings. Pigs and horses are said to have the mental capacity of a 3-5-year-old child. Dogs and cows are said to have the mental capacity of a 2-3-year-old child. Even chickens can learn to perform various behaviors. All of them can feel pain, lonliness, stress, and terror.
In opposing domestication, if all use of domestic animals was halted tomorrow, I would support efforts to ethically care for those animals for the rest of their natural lives, until the last domesticated animal died out. PETA would likely kill all domestic animals immediately. I get the distinct impression that PETA (and/or its individual members) believe that death is better than life, if you're a captive animal (with their shelter kill rate as evidence). I don't agree. I believe that a responsible, ethical home is owed to all domestic animals. It is our (human) failure when any domestic animal is forced to live in cruel, neglectful, or markedly unnatural conditions.
PETA kills A LOT of animals every year (mostly domesticated animals). They kill nearly all the animals they take into their Virginia "shelter" under the guise of helping them. Death is not help. Dumping dead animals' bodies in a store's dumpster is far from "ethical treatment". (Thankfully, the PETA employees involved were convicted of that crime.)