What does "meant" even mean? Do you mean our creator meant it that way? If you don't believe in a creator then I don't think it means anything really.
From an evolutionary perspective, which you seem to be taking with the raw meat argument, humans have definitely evolved to eat meat. Before farming, which makes up the bulk of our evolutionary history, there wouldn't have been enough plants around to get the protein humans need. But does that me we are meant to eat it? Again, meant by who? A creator?
But I agree that now we don't need to eat meat because through farming we have developed substitutes for protein that our ancestors could have only got from meats.
I agree this type of argument is a weak one in favour of meat. I'm a proud meat eater and I know I am killing animals for my own pleasure when I eat meat. Don't try to make excuses fellow meat eaters. Meat tastes good and that is enough.