Yes there are lots of things going on in the world everyday and the great thing about the internet is that news sites can present multiple topics at once. 

The reason this is news is because this is not the behavior of a rational human being. It is puerile and petty. These are the actions of an intellectually and emotionally stunted man. You may not care that he is a thin skinned reactionary with an ego so fragile that he strikes out at anyone who doesn't agree that he is the greatest person alive, but these tantrums reduce the stature of the office of the President. 

These are not qualities becoming the leader of the free world. Consequently the world is already turning away from the US and looking elsewhere for sane and steady leadership to address all those far more important issues of which you speak.