Would World leaders be astronauts?

As we can see in this report from BBC, environmentalists always have someone to blame. Normally this someone are the "World Leaders", a specific group amid "the others".
But do they have nothing with the so-called leaders? Don´t they can be one of them? Is not the leadership open for who has ability to be one?
These people must let the saint´s vests away and start to demonstrate effectively, but not just marching, showing the public the reasons of theirs ideas.
People does not destruct the environment by amusement, despite will not change the practices based on nothing. Well explained facts, showing how they affect the people will transform the attitudes, terrorism will just foment fear.
Blame world leaders as if they were not humans as ourself will just produce nothing.