Some people, indeed a lot of people, believe that not just humans, but animals, possess souls, and so should not be eaten. Is it thus religiously insensitive for public secular institutions, like college cafeterias, to serve hamburgers? And should professors in those colleges be expected to alert students that, in their classes, they might sometimes bring up the subject of hamburgers, and show films portraying animals being eaten?
If you say no, one needn’t go out of one’s way to show any particular deference to religiously motivated vegetarians, adjusting your behavior and speech to suit their sensibilities, then why show religious deference to anyone at all? Shouldn’t all adults in a free and diverse society, regardless of their religion (or irreligion), expect exposure to people who think, speak, and act in ways that are contrary to them, and not desire any special protection from this exposure?