New Covid wave has begun and masks should be worn again, scientists warn

I still wear a mask when going out to stores because I'm immunocompromised due to a kidney transplant. It's ultimately up to me to protect myself from others but what bothers me most lately are people who either laugh or think I'm stupid for still wearing a mask. Some even go as far as to call me out and shame me for it. Can people just mind their own business? I'm not trying to get them to wear a mask so why are they so fixated on me taking mine off?