Did you hear me say anything about 'do only this one thing, and nothing else'?
Let me help you out with that answer. No, you didn't.
However, activities like the ones I suggest will, oh yes they will, have excellent results that you will not likely perceive nor understand, because your sarcastic attitude precludes it.
My suggestion is for the many hundreds of thousands of people who cannot jump onto a plane and fly in to help, yet who wish to do whatever else they can from wherever they are, and simply may not have thought of this yet. This is only one of the many, many things that they/we can do.
So after you disengage your mistaken notion born out of your own stuck thinking, take it to a debate forum.
And yes, it comes back to you, times ten. Doubtless from all sides.