Ah ok, thanks for persevering.
What about if if society ate meat? There's no clear argument against it
So I think you're saying things like this because you're only considering humans (and I guess cats and dogs). The whole thing about 'ethical vegetarians' or whatever you want to call them, is they are people who don't just consider humans and nothing else when thinking about who is harmed (or rather, not just humans, cats and dogs). It seems entirely arbitrary to draw that line at the exact point between humans and everything else. At least, it's not easy to think of a reason to do this, except we are humans or I was brought up doing it this way etc, which aren't very good reasons. Whatever particular quality you choose, the line isn't there. Intelligence? Some animals are smarter than some humans, etc. For me and a lot of people, being able to feel pain, suffering, is a good line to draw. Anyway, I'm no expert, I haven't read or thought about this stuff for decades, there's a large literature on the subject, which it sounds like you don't know about, and shouldn't be saying things like "There's no clear argument against it" when you have no idea whether there is or not. (Christians think there's no clear argument against their god or their ridiculous mythology, well, it's clear enough if you aren't already a believer.) But from the evidence, it seems reasonable that animals deserve ethical consideration, not just treated like, well, like slaves, like pieces of 'meat' waiting to be exploited by humans. There's no clear argument they don't, I'd say. Although there's no clear argument is an unfortunate phrase, being so subjective.
It's why I think slavery is a useful comparison - they're not just ethical questions, but questions about who is to be even included in the ethical circle, who is worthy of consideration, respect, decent treatment. Before even considering whether they're getting it.
Also, I don't think I've heard the term moral views used like that before, it's sad that it's such a bad phrase for you. Although I'm in Australia, the country isn't full of religious people running around proclaiming their insane god-given morality unlike some, e.g. the USA.