This is to protest against any potential protestors in New York in order to stop military and other aid from other richer countries by denouncing the king.
I don't want to write too much about it, because we call know Nepal needs aid, no matter if it's the king is in power or anyone else. As soon as the aid is stopped there will be a lot of poor people in Nepal who are going to suffer.
Plus, these protesters don't have any agenda in mind. They are ready to send the country into a state of anarchy just for their individual reasons. Most of them don't even have their family living in Nepal so no matter what happens to the common person in Nepal, they don't give a rats ass.
If you family is living in Nepal, and you oppose this opportunistic manupulation of the people in US by the politicians and their croonies in Nepal, because you do not want to risk your family being amidst the civil war and chaos that these opportunists want to push Nepal into (while they are safely tucked away in the US or UK or other countries), protest against this useless protest now!