In my opinion, these are easy questions.
#1: Stop thinking in terms of some humans telling other humans what they can and cannot do, and what they must and must not do. That is explicit slavery. No human has any legitimate basis to tell others what to do or not do.
#2: If you want to hold an event … then hold the event. It is up to you and you alone to decide whether to hold the event, and what kind of event, and what measures and situations will exist at the event.
#3: If any individual wants to come to the event or not … that is their decision and their decision alone. If they don’t want to take the risk, then stay home. If they want to take the risk, then consider going.
Simple as that. Everyone can research, discuss, argue, yell, scream, holler at each other all they want. But when it comes to what you want to do, and what others want to do …
STOP THINKING IN TERMS OF YOU OR ANYONE TELLING OTHERS WHAT TO DO.
The notion that answers like these should be conducted as arguments about what should EVERYONE be forced to do … is inherently totalitarian and inherently disgusting. There is a great deal of totalitarianism and disgusting going around these days.
Bottom line: Do whatever you wish, and leave others free to do whatever they wish. Simple as that.