> I just cannot get over how gross it actually is to engage with

Cigarettes had the bonus of the infamous second hand smoke where it affected those not actively using the cigarette. It was the non-smokers that took action where we first started to see non-smoking sections in public places before eventually going completely non-smoking. There's really no equivalent for people using their devices in zombie mode in public places that affect those not using it to the equivalent public annoyance.