How to stop websites from seeing specific events? [closed]

I don’t want websites to be able to know when I cut, copy, paste, switch window etc.

It seems that it is possible to use specific js scripts using Tampermonkey add-on such as the following:

document.addEventListener('EVENT', function(event) {
    event.stopImmediatePropagation();
}, true);

But it seems that it only works for existing events. As soon as I re-add events, they work again.

Is there a way to stop all existing and future events of a specific kind, it seems weird that we have no control over the events websites have access to ?