The North Koreans has nothing to compare or came close.....so it is legitimate for the North Koreans to own ballistic missiles to fight back. Just like China in 1980s, when the PLAAF has no su27s, no J-10s, No type 93SSN and Chinese submarines were mainly Soviets Romeo class submarines! What can China fight back when surrounding countries has superior fighter aircrafts! if the calender of today is 1987??
The main problem is that 30 years old North Korean King, his throne is very unstable! He lead the missiles launching too frequent and he has no military talents at all but frequently giving commands to let the North Korean people to believe a myth he fabricated : I am the King! Should China remove this man and put someone else to be KIng or just annex North Korea to prevent further troubles? K.J.'smother was a North Korean film actor, his mother was a whore and everyone understood his background, thats why he was depised and his throne is a shaking chandelier.