Man is a natural carnivore. Animals are replaceable. A vegetarian population would be ecologically catastrophic. Humans need to kill to survive. There is no connection between oppression of women and animals.
Some indigenous peoples depend upon killed animals to survive.
Humans are obligated to prevent non-humans from killing and eating each other. Animals want to be or are indifferent to being eaten. Eating free-range animals is acceptable because these animals are not raised in cruel factory farming conditions. Vegetarians are hypocrites because they use animal products or are not consistent about not using products such as leather for belts and shoes. In Deep Vegetarianism Michael Fox has assembled an impressive philosophical defense of the vegetarian lifestyle, a structure of beliefs vegetarians can employ to clarify their own views before they argue them with others.