I guarantee that if you ask a normie on an airplane to take off their mask as it's making you uncomfortable that they will flip-out and tell the flight crew that you're harassing them and that they don't feel safe with you sitting next to them. So, I wouldn't say it unless the normie first asks you to put yours on, then you'll be justified in flipping the script and all that will likely happen is the flight attendants will move you to a different seat.Last year at some point Tucker Carlson suggested asking people wearing masks outdoors where not mandated to "Kindly remove your mask as its making me uncomfortable".
Flipping the script is a good idea especially now wherever the covidiots are a minority
By the way, I give the "My aren't you a silly rabbit" smirk at people wearing a mask around me sometimes. Many of them react like they know what I'm doing and studiously avoid eye contact.