your version of the story leaves out some important facts like it doesn't matter whether you put it in your cart because it's already dead, and the person who killed it was already paid by somebody who wasn't you.
That's a very basic and low IQ comment. I suggest you look up how economics work. Just because it's there doesn't mean that your money doesn't pay for the next. That's how it always works. If nobody wants some animal killing then they won't be killed. Pretty simple.
if you don't have evidence for your position, that is good reason to suspect it is not valid. a claim made without evidence can be dismissed without evidence, after all.