This whole conversation has gone bananas. The fact is Greta is a very useful figurehead, primed and manipulated by others, and as a young girl with considerable problems - one, frankly, painful to watch - she is someone who engenders sympathy - always an asset in rallying support for a noble cause. No one who really thinks about this can seriously believe that if she alone had been responsible for her crusade she would have gained such easy access to world leaders, to the world stage, and to the international media ….can they?
Incidentally, Malala is in a different league entirely. No comparison can, or should, be made.