Any Vegetarians/Vegans here?

[Angrboda]

Species? But why not just stop at gender? Or race?

Because evolution works at the species level, and I believe moral judgement is an evolved psychological mechanism which serves to increase the survivability of the species. Therefore it makes no sense to apply it at either a finer or greater granularity, except insofar as there are indirect consequences for species survival from doing so.

The rest of your argument was nothing more than an appeal to the slippery slope, and is thus a non sequitur.

And again you've yet to give a reason for your moral claim. That the "trend" has been to extend protection to an ever wider net is an appeal to tradition, and is thus another non sequitur.

The only thing approaching a moral claim is that we should correct inequity if we see it. That's an implied claim that the lives of food animals have equal worth to our own (inequality/inequity); and that's just a bare assertion.