Hmm, yet people overwhelmingly agree that slavery is nothing to be proud of, and somehow I'm sure you'd never play the "difference of opinion" card in defence of slavery...

Anyway, I'm proud of myself because I know that when I go to buy food, clothes, and much more, I purposefully choose products which do not require that, behind closed doors, untold numbers of feeling, sensate creatures are, among other things, purposefully genetically manipulated to live lives of sickness and deformity, housed in miserable concentration camp-like conditions, and slaughtered barbarically. I'm proud to stand up for the rights of creatures with mental capacities the equivalent of young human babies - and I'm especially proud that I stand up for creatures unable to speak up for themselves, and hence so easy to discount and ignore their suffering and mistreatment.

What are you proud of when you buy and eat meat?