[W]hy bother if you are just going to eat stuff that (poorly) imitates what you no longer eat by choice?
I’m often questioned the same way when I drink decaf coffee or non-alcoholic beer. It’s not seen as a personal choice, it’s an illogical affront. We “bother” because we choose to, which means you can choose not to. What a concept!
I know those asking the question are being facetious, but if you’re vegetarian for ethical or environmental reasons, having mock meat that has a lower impact and harm is a good thing. And best of all, you can still eat real meat if you prefer!