That's fine. You're free to request, but the law is the law (and sometimes a ass). The law says your students can bring their firearms to class, so they're free to ignore your request. I find the "wherever I am present" particularly arrogant, as if he can instantiate a roving rights-free zone just by walking around. If you're the one that doesn't like guns (or cars, cabbages, or the color blue), how arrogant to assume the onus is upon others to waive their civil rights rather than upon you to stay away from places where those legal items might be found.
Sounds like the “esteemed” Prof. Needs to pack his crap and GTFO of Kansas if he demands to be clear of concealed carriers.
Whiney little commie rat. Here’s hoping he meets up with some nice newly entered ms-13 fellers who enjoy him company.